2Bio 104: Issues in Biotechnology The Way We Work With LifeDr. Albert P. KauschKimberly NelsonOnCampus LiveBCH 190, MIC 190, AFS 190, NRS 190, PLS 190OnLine BCH 190A Sweeping General Survey on Life and BiotechnologyA Public Access College CourseThe University of Rhode IslandIssues in Biotechnology:Biotechnology, Our Society and Our Futurelife edu.usFeb 20a: Agricultural Biochechnology
4DNA-based Forensics: The Real Story The National Forensic Debate: Issues in Biotechnology:The Way We Work With LifeDr. Albert P. Kauschlife edu.usForensicsDNA-based Forensics: The Real StoryThe National Forensic Debate:Public Safety vs. The Right of PrivacyTrace Evidence
8The Rhode Island State Crime Lab: Forensic Examinations Dennis Hilliard, DirectorAmy DuhaimeCriminalist IIIRhode Island State Crime Lab
9Connecticut State Forensic Science Laboratory Michael Adamowicz, CriminalistCarll Ladd, Lead CriminalistForensic Biology
10Biotechnology Stocks Project Time to cash in (or out) as the case may be!!!What happened to your $100,000.00!!!!!!!Invested in Biotech. Stocks this Semester?1. Select and Research five Biotech companies.2. Print out the current stock quote and annual chart.3. Invest chosen amounts in each. Calculate shares in each.4. Monitor Stock.5. Print out the stock quote and annual chart Weds.6. Calculate gains and losses. Submit report.
11To whom much is given,much is required Luke 12:48Once you know, you cannot unknow Kausch, The AbandonIn much wisdom there is griefin much knowledge there is pain Ecclesiastes 1:18Now that you know, know that you now Kausch, The Abandon
12DNA-based Forensics: The Real Story The National Forensic Debate: Issues in Biotechnology:The Way We Work With LifeDr. Albert P. Kauschlife edu.usForensicsDNA-based Forensics: The Real StoryThe National Forensic Debate:Public Safety vs. The Right of PrivacyTrace Evidence
13I typically watch TV:(A) 0-2 hrs/day(B) 2-3 hrs/day(C) 3-5 hrs/day(D) hrs/day(E) over 10 hrs/day
14The average American watches TV: (A) 0-2 hrs/day(B) 2-3 hrs/day(C) 3-5 hrs/day(D) hrs/day(E) over 10 hrs/day
15I typically watch TV: 4 hrs X 365 = 1460 hrs/yr 1460 hrs/yr ÷ 16 hrs waking hrs/day = days/yr91.25 days/yr over 50 yrs = days or 12.5 yrs
16Does watching TV influence teenage sexual behavior? Does watching TV influence teenage violent behavior?
17Children And TV Violence 2012 Hundreds of studies on the effects of TV violence on children and teenagers have found that children may:become “immune” or numb to the horror of violencegradually accept violence as a way to solve problemsimitate the violence they observe on television; andidentify with certain characters, victims and/or victimizers
19Children And TV Violence 2008 Nearly 2 out of 3 TV programs contain some violence, averaging about 6 violent acts per hour.The average child who watches 2 hours of cartoons a day may see nearly 10,000 violent incidents each year, of which the researchers estimate that at least 500 pose a high risk for learning and imitating aggression and becoming desensitized to violence.Center for Communication and Social Policy, Universityof California, Santa Barbara (UCSB), National TelevisionViolence Study, Executive Summary, Volume
20Longitudinal Relations Between Children’s Exposure to TV Violence and Their Aggressive and Violent Behavior in Young Adulthood: 1977–1992L. Rowell Huesmann, Jessica Moise-Titus, Cheryl-Lynn Podolski, and Leonard D. EronUniversity of MichiganDevelopmental Psychology 2003 The American Psychological Association, Inc.2003, Vol. 39, No. 2, 201–221ABSTRACTAlthough the relation between TV-violence viewing and aggression in childhood has been clearlydemonstrated, only a few studies have examined this relation from childhood to adulthood, and these studies of children growing up in the 1960s reported significant relations only for boys. The current study examines the longitudinal relations between TV-violence viewing at ages 6 to 10 and adult aggressive behavior about 15 years later for a sample growing up in the 1970s and 1980s. Follow-up archival data (N 450) and interview data (N 329) reveal that childhood exposure to media violence predicts young adult aggressive behavior for both males and females. Identification with aggressive TV characters and perceived realism of TV violence also predict later aggression. These relations persist even when the effects of socioeconomic status, intellectual ability, and a variety of parenting factors are controlled.
22the application of natural Forensic Science:the application of naturalsciences to matters ofthe law.
23Physical Evidence Analysis Is concerned with the recognition, identification, comparison, individualization, interpretation and reconstruction of evidence.
24Criminalistics: Study and evaluation of the recognition, identification, individualization, andevaluation of physical evidence using themethods of the natural sciences inmatters of legal significance.
25Physical evidence examination can: Link a suspect with the victimLink a person to a crime sceneLink an object to a crimeDisprove or support witness testimonyIdentify a personAid in the Reconstruction of a crime
26Chain of CustodyThe chain of custody begins when the evidence is located at the scene even before it is collected and does not end, until the case has been adjudicated in court and all appeals have been exhausted.
31Patterns are the basis of DNA Identification DNA Profiles, Marker D10S28 C V D E1 E2 E3 CPatterns in DNA markers can link a suspect to a crime sceneC = ControlV = VictimD = DefendantE = Evidentiary sample
33Issues in Biotechnology If you flip a coin six times and get heads on all six flips, what is the probability of getting heads on the next toss?(A) 1/2(B) 1/100(C) 1/1000(D) 1/10,000(E) 1/1,000,000
34Murder at Rodman Dam, 1988In July 1987 Randall Scott Jones and Chris Reesh, both in their teens, went target shooting with a 30/30 hunting rifle at the Rodman Dam Recreation Area in Florida. While they were shooting, Jones’ pickup truck became stuck in a sand pit. A fisherman suggested they ask a couple in a pickup parked nearby for help. Jones and Reesh approached the truck, where Kelly Lynn Perry and her fiancé Matthew Brock were sleeping. The two men debated whether or not to wake them to ask for assistance.
35Murder at Rodman Dam, 1988The following morning, fishermen found the bodies of Perry and Brock in the woods adjacent to the recreation area. Police investigation revealed that they had been shot with a 30 caliber bullet and Perry had been sexually assaulted. Their pickup was reported stolen.
36Murder at Rodman Dam, 1988In August, Jones was arrested in Mississippi, found driving Brocks pickup. Reesh was arrested the next day in Palatka, Florida, after Jones told police that they were together that night in July. Both were indicted on counts of first degree assault and sexual battery.
37Murder at Rodman Dam, 1988A semen sample E(vs) retrieved from Perry’s body, and blood samples from Reesh, S1, and Jones, S2, were compared at a laboratory that specialized in DNA testing. The resulting DNA evidence indicated which man was guilty of rape.
38Murder at Rodman Dam, 1988 Who is most likely guilty of the rape? DNA resultsWho is most likely guilty of the rape?A. ChrisReeshB. RandallJones
39Murder at Rodman Dam, 1988Using the DNA results and other evidence, officials identified Jones as the rapist and were able to piece together the events of the crime.Without waking the couple in the pickup, Jones shot both Perry and Brock in the head at close range. He and Reesh then dragged the bodies into the woods nearby. They towed Jones’ truck with Brock’s pickup and left with both trucks.Later, Jones returned to the crime scene, moved the bodies further into the woods, and raped Perry.
40Murder at Rodman Dam, 1988A representative from the DNA lab testified that the chance of another person having the same DNA fingerprint as Jones was one in 9,390,000,000, about twice the earth’s population.After deliberating only 15 minutes, the jury convicted Jones of murder and rape. The judge sentenced him to a double death sentence, making this the first case involving DNA evidence in the U.S. legal history in which the death sentence was handed down. Reesh was sentenced to six years in prison and twenty years probation.
41DNA Uses for DNA Analysis Criminal Investigations Paternity Cases Genetic Disease DiagnosisIdentifying Endangered AnimalsIdentifying Remains from WarIdentifying Accident Victims
43DNA Hereditary material of all living organisms Found predominantly in the cell nucleusOrganized into chromosomesHumans-46 chromosomes23 maternal & 23 paternalPolymer-individual units called nucleotidesStructure-double helixWatson and Crick, 1953
44Forensic Identification: Basic Principles Each of us is genetically uniqueIf enough genetic variation is tested, each of us can be uniquely identifiedDNA is found in nearly all cells (blood, semen, hair, etc.)DNA from an evidentiary sample can be matched with DNA from a suspect to implicate or exonerate
45DNA Casework 1. Forensic Analysis (Criminal) 132 labs conducting DNA analysis in 49 states~ 40,000 cases/year received~ 25,000 analyzed~ 80% sexual assaults2. ~ 30% of the time the suspect is excluded byDNA3. ~ 300,000 paternity cases per year
46Sources of Biological Evidence BloodSemenSalivaUrineHairTeethBoneTissue
47Other Possible items for DNA Testing: 1. cigarette butts2. gloves, bandanas, ski masks, baseball capsgeneral clothing3. condoms (inside vs. outside)4. stains on furniture, pillows, sheets5. hair clips, lipsticks6. letters, envelopes, and stamps7. plant and animal sources of evidence
49Gel Electrophoresis: the separation of molecules, DNA, RNA and proteinsby charge and sizeElectro refers to the energy of electricity. Phoresis, from the Greek verb phoros, means “to carry across.” Thus, gel electrophoresis refers to the technique in which molecules are forced across a span of gel, motivated by an electrical current.
50Tools of the Trade The eppendorf tube and the pipetman are the standard stockand trade in the dailywork of a molecularbiologist
54Applications of Gel Electrophoresis DNA FingerprintingDNA Recombinant TechnologyForensicsThe Human Genome Project
55DNA carries a net negative charge; it is negatively charged because the phosphates (red circles) that form the sugar-phosphate backbone of a DNA molecule have a negative charge.
56The gel matrix acts as a sieve for DNA molecules The gel matrix acts as a sieve for DNA molecules. Large molecules have difficulty getting through the holes in the matrix. Small molecules move easily through the holes. Because of this, large fragments will lag behind small fragments as DNA migrates through the gel.
57As the separation process continues, the separation between the larger and smaller fragments increases.
58Molecular weight markers are often electrophoresed with DNA. Molecular weight markers are usually a mixture of DNAs with known molecular weights.Molecular weight markers are used to estimate the sizes of DNA fragments in a DNA sample.
59What are some of the DNA technologies used in forensic investigations? Restriction Fragment Length Polymorphism (RFLP)PCR Analysis STR Analysis Mitochondrial DNA Analysis Y-Chromosome Analysis
60Restriction Fragment Length Polymorphism (RFLP) RFLP is a technique for analyzing the variable lengths of DNA fragments that result from digesting a DNA sample with a special kind of enzyme. This enzyme, a restriction endonuclease, cuts DNA at a specific sequence pattern know as a restriction endonuclease recognition site. The presence or absence of certain recognition sites in a DNA sample generates variable lengths of DNA fragments, which are separated using gel electrophoresis. They are then hybridized with DNA probes that bind to a complementary DNA sequence in the sample.RFLP is one of the original applications of DNA analysis to forensic investigation. With the development of newer, more efficient DNA-analysis techniques, RFLP is not used as much as it once was because it requires relatively large amounts of DNA. In addition, samples degraded by environmental factors, such as dirt or mold, do not work well with RFLP.
61PCR AnalysisPCR (polymerase chain reaction) is used to make millions of exact copies of DNA from a biological sample. DNA amplification with PCR allows DNA analysis on biological samples as small as a few skin cells. With RFLP, DNA samples would have to be about the size of a quarter. The ability of PCR to amplify such tiny quantities of DNA enables even highly degraded samples to be analyzed. Great care, however, must be taken to prevent contamination with other biological materials during the identifying, collecting, and preserving of a sample.
62STR AnalysisShort tandem repeat (STR) technology is used to evaluate specific regions (loci) within nuclear DNA. Variability in STR regions can be used to distinguish one DNA profile from another. The Federal Bureau of Investigation (FBI) uses a standard set of 13 specific STR regions for CODIS. CODIS is a software program that operates local, state, and national databases of DNA profiles from convicted offenders, unsolved crime scene evidence, and missing persons. The odds that two individuals will have the same 13-loci DNA profile is about one in one billion.
63Mitochondrial DNA Analysis Mitochondrial DNA analysis (mtDNA) can be used to examine the DNA from samples that cannot be analyzed by RFLP or STR. Nuclear DNA must be extracted from samples for use in RFLP, PCR, and STR; however, mtDNA analysis uses DNA extracted from another cellular organelle called a mitochondrion. While older biological samples that lack nucleated cellular material, such as hair, bones, and teeth, cannot be analyzed with STR and RFLP, they can be analyzed with mtDNA. In the investigation of cases that have gone unsolved for many years, mtDNA is extremely valuable.All mothers have the same mitochondrial DNA as their daughters. This is because the mitochondria of each new embryo comes from the mother’s egg cell. The father’s sperm contributes only nuclear DNA. Comparing the mtDNA profile of unidentified remains with the profile of a potential maternal relative can be an important technique in missing person investigations.
64Y-Chromosome Analysis The Y chromosome is passed directly from father to son, so the analysis of genetic markers on the Y chromosome is especially useful for tracing relationships among males or for analyzing biological evidence involving multiple male contributors.
65The Polymerase Chain Reaction PCRThe Polymerase Chain ReactionLet’s Take a Break
67Repetition of this cycle will cause repeated replication of the target
68THERE ARE MILLIONS OF DIFFERENT GENES OR SEQUENCES WITHIN ANY DNA SAMPLE (BLOOD, TISSUE, PLANT, ETC.).A SPECIFIC SEQUENCE IS SELECTED TO BE AMPLIFIED (RED ABOVE). THIS SEQUENCE CAN BE ANY GENE OF INTEREST OR A NON-CODING MARKER REGION OF DNA.
69IN ORDER TO COPY THE SEQUENCE OR GENE, A SHORT SEQUENCE ON EITHER SIDE OF THE SECTION MUST BE KNOWN. THIS REGION (BLUE ABOVE) WILL SERVE AS A PRIMER ATTACHMENT SITE TO COPY THE DNA TARGET SEGMENT.
70IN ORDER TO AMPLIFY A SPECIFIC FRAGMENT OF DNA, SEVERAL THINGS ARE NEEDED, INCLUDING PRIMERS AND DNA POLYMERASE.AN ENZYME WHICH COPIES DNA, PRIMERS ARE SHORT PIECES OF DNA OR RNA DESIGNED TO PAIR WITH GENOMIC DNA AT A SPECIFIC ATTACHMENT SITE FOR THE MAIN PURPOSE OF HELPING THE DNA POLYMERASE BIND AT THE DESIRED SECTION.
71WITHOUT A SHORT PIECE OF DNA(OR RNA) TO ATTACH TO, DNA POLYMERASE CAN NOT COPY A DNA STRAND.
72NUCLEOSIDE TRIPHOSPHATES, THE BUILDING BLOCKS OF DNA ARE ALSO NEEDED. EACH NUCLEOSIDE TRIPHOSPHATE CONSISTS OF:A BASE (ADENINE, THYMINE, CYTOSINE OR GUANINE).A SUGAR AND THREE PHOSPHATES.
73PCR REQUIRES SEVERAL CYCLES OF AMPLIFICATION. EACH CYCLE CONSISTS OF THREE TEMPERATURE CHANGES.THE STARTING TEMPERATURE (95 C) SEPARATES THE DNA STRANDS.A LOWERED TEMPERATURE (50-60 C) ALLOWS PRIMERS TO BIND TO COMPLEMENTARY SEQUENCES IN THE DNA.A SLIGHTLY HIGHER TEMPERATURE (72 C) ALLOWS DNA POLYMERASE TO ATTACH TO THE PRIMERS AND COPY THE DNA STRANDS (EXTENSION).
78THE PROCESS IS REPEATED IN THE NEXT CYCLE. THE TEMPERATURE IS RAISED AGAIN TO SEPARATETHE DNA STRANDS.
79THE TEMPERATURE IS LOWERED TO ALLOW PRIMERS TO ANNEAL. DNA POLYMERASE ATTACHES TOTHE PRIMERS AND DNA IS COPIED TO MAKE4 STRANDS OF DNA.
80STRs Are Used in Identity Testing ...atatatacaacttactaccatataccgattacgatcgaattataccgcggacgtagtaatgacgatgaagtaactatatatatatatatatatatatatatatatatatatatatatatatatatatatatatatatatatatatatatatatatatatatatatatatatatatatatatatatatatatatatatatatatatatatatatatatatatatatatatatatatatatatatatatatatatatatatatatatatatactacctaccagggaggagata...“ShortTandemRepeatsequence”
81CODIS 13 Core STR Loci with Human Chromosomal Positions TPOXD3S1358TH01D8S1179D5S818VWAFGAD7S820CSF1POAMELD13S317AMELD16S539D18S51D21S11
82THE PROCESS OF COPYING DNA STRANDS IS REPEATED 32-35 TIMES. WITH EACH AMPLIFICATION CYCLE,THE NUMBER OF COPIES OF THE DNA SEQUENCE ISDOUBLED UNTIL MILLIONS OF COPIES HAVE BEEN MADE.
83Over 1 million copies are generated in 32 cycles of this chain reaction These copies can easily be detectedby gel electrophoresis. The size of the DNA fragment should be that of the target sequence
84What is CODIS? Combined DNA Index System CODIS is a computer software program that operates local, State, and national databases of DNA profiles from convicted offenders, unsolved crime scene evidence, and missing persons. Every State in the Nation has a statutory provision for the establishment of a DNA database that allows for the collection of DNA profiles from offenders convicted of particular crimes. CODIS software enables State, local, and national law enforcement crime laboratories to compare DNA profiles electronically, thereby linking serial crimes to each other and identifying suspects by matching DNA profiles from crime scenes with profiles from convicted offenders. The success of CODIS is demonstrated by the thousands of matches that have linked serial cases to each other and cases that have been solved by matching crime scene evidence to known convicted offenders.The missing persons index consists of the unidentified persons index and the reference index. The unidentified persons index contains DNA profiles from recovered remains, such as bone, teeth, or hair. The reference index contains DNA profiles from related individuals of missing persons so that they can be periodically compared to the unidentified persons index. All samples for this index are typed using mtDNA and STR DNA analysis (if possible) to maximize the power of advancing technology.
85PCR Copies DNA Exponentially through Multiple Thermal Cycles Original DNA target regionThermal cycleThermal cycleThermal cycleIn 32 cycles at 100% efficiency, 1.07 billion copies of targeted DNA region are created
86Laboratory PCR Instrument INPUT:Sample DNA, PCR enzymes,primers, individual nucleotidebuilding blocks (and maybefluorescent labels)OUTPUT:Specific DNA fragments amplifiedmillions of times for easy visualizationWith sizes that vary between individualsHere is a picture of one kind of PCR instrument. This one has the ability to do PCR on 96 samples at a time. Small tubes are inserted that contain the sample DNA, and all the ingredients to do PCR. The instrument cycles the temperature so that specific enzymes can unzip the DNA and make copies.The output after thermal cycling is a tube with the original ingredients plus millions of copies of the DNA segment of interest.It is now possible to set up the sample so that many different regions are copied all at the same time: called multiplex PCR.
87Multiplex PCR Over 10 Markers Can Be Copied at Once Sensitivities to Levels Less Than 1 ng of DNAAbility to Handle Mixtures and Degraded SamplesDifferent Fluorescent Dyes Used to Distinguish STR Alleles with Overlapping Size Ranges
88Available Kits for STR Analysis Kits make it easy for labs to just add DNA samples to a pre-made mix13 CODIS core lociProfiler Plus and COfiler (PE Applied Biosystems)PowerPlex 1.1 and 2.1 (Promega Corporation)Increased power of discriminationCTT (1994): 1 in 410SGM Plus™ (1999): 1 in 3 trillionPowerPlex ™ 16 (2000): 1 in 2 x 1017
89Identity Testing Using PCR Analysis of four different sections of the DNAPossible conclusions:A. Suspect 1 DNA wasat the sceneB. Suspect 2 DNA wasC. Suspect 3 DNA wasD. None were at the sceneE. Multiple suspectswere at the sceneF. Data is inconclusiveS = size standardsV = victim’s DNA1 = suspect #1 blood2 = suspect #2 blood3 = suspect #3 bloodE = evidence #1
90A complete match! S V 1 2 3 E S S = size standards V = victim’s DNA 450S = size standardsV = victim’s DNA1 = suspect #1 blood2 = suspect #2 blood3 = suspect #3 bloodE = evidence #1400A complete match!35030025020015010050
91Case Study: State vs. Michael DeCorso Homicide (no DNA)Rape: DNA in semen samples from two teenage female victims
92DNA Profiles, Marker D10S28 C = Control V = Victim D = Defendant C V D E1 E2 E3 CC = ControlV = VictimD = DefendantE = Evidentiary samplePopulation frequency of defendant’s genotype = 1/50
93DNA Profiles, Marker D4S139 C = Control V = Victim D = Defendant C V D E1 E2 E3 CC = ControlV = VictimD = DefendantE = Evidentiary samplePopulation frequency of defendant’s genotype = 1/90
94DNA Profiles, Marker D5S110 C = Control V = Victim D = Defendant C V D E1 E2 E3 CC = ControlV = VictimD = DefendantE = Evidentiary samplePopulation frequency of defendant’s genotype = 1/10
95DNA Profiles, Marker TH01 C = Control V = Victim D = Defendant C V D E1 E2 E3 CC = ControlV = VictimD = DefendantE = Evidentiary samplePopulation frequency of defendant’s genotype = 1/70
96The information from each gel can be combined to tell us how common the DNA profile is in the general population1/50 x 1/90 x 1/10 x 1/70 = 1/3,150,000
97Random match probabilities CODIS with 13 Markers - Probability of an identical match greater than all the people who have ever been born in the history of the earth
98Forensic applications of DNA based technologies FingerprintingOJ SimpsonIdentificationPaternityCrime SolvingWorld widedata base
99Dramatic Growth In DNA-Based Forensics Doesn’t Translate Into Very Many Job Opportunities
100Note: There are two alleles* for each One set of22 autosomes(plus X)One set of22 autosomes(plus X or Y)Paternity TestingThree children: The father claims he is not the father of the third childNote: There are two alleles* for eachgenetic marker
101USE OF NON-HUMAN DNA PERFECT DNA MATCH WITH CAT STRS (NY TIMES INTERNATIONALAPRIL 24, 1997)1994 HOMICIDEPLASTIC BAG FOUND IN SHALLOW GRAVE WITH BLOODYJACKET AND TRACE HAIRSHAIRS BELONGED TO SUSPECT’S CAT, SNOWBALL
102DOG DNA CONTRIBUTES TO MURDER CONVICTIONS SEATTLE, DOUBLE MURDER, 2 SUSPECTSCOUPLE TORTURED AND SHOT ALONG WITH PET DOGDID BLOOD ON SUSPECT’S CLOTHING MATCH THE DOG?1 IN 3 BILLION MATCH PROBABILITY IN RANDOM CANINEPOPULATION
103FORENSIC PLANT DNADNA MARKERS FOR PLANTS CAN BE USED TO LINK EVIDENCE TO A CRIME SCENEGRASS STAINS LINKED TO LAWNSVEGTABLE DNA LINKED TO RESTAURANTSRARE OR UNUSUAL PLANTS LINKED TO VEHICLESMARAJUANA
104The CT CODIS Database collects two types of samples; (1) Convicted Offender Samples that include all Felony Convictions (since 03/01/04) and, (2) Forensic Unknowns that include any DNA profile from an evidentiary sample that does not match the victim or an elimination known. There are currently 10,793 offenders in CT Database and over 1,500 offender samples are added per month. Currently there are how many felons on the CT database?(A) 1 out of 50 males in CT(B) 1 out of 500 males in CT(B) 1 out of 1000 males in CT(C) 1 out of 10,000 males in CT(E) none of these answers is correct
107Renee PellegrinoRenee Pellegrino’s found June 25, 1997, murder victim.Renee Pellegrino was an accomplished scholar with a law degree, had become addicted to crack cocaine and turned to prostitution. She was 40 years old and pregnant when her naked body was discovered in a cul-de-sac off Waterford Parkway South, CT.
108Renee PellegrinoShe had just been released from a three-week prison stay when she was apparently picked up by her killer in downtown New London on June 25, 1997, murdered and left naked on Parkway South.She had been strangled, and the killer had left her body in what the judge described as an “extreme” manner.
110Charged Dickie Anderson 2012 Police make arrest in Pellegrino cold caseJune 1, years laterPolice charged Dickie E. Anderson Jr., 40, with murder in the 41-year-old Pellegrino’s death.The arrest was the result of a cold-case investigation into Pellegrino’s death, which occurred on a dead-end street in Waterford. The state Office of the Chief Medical Examiner ruled that Pellegrino had been strangled.Anderson, who was 27 at the time of the crime, was arrested as a result of an investigation conducted by the Southeastern Connecticut Cold Case Unit. The arrest warrant has been sealed.
111Charged Dickie Anderson 2012 Police make arrest in Pellegrino cold caseJune 1, 2010
112Charged Dickie Anderson 2012 Police make arrest in Pellegrino cold caseJune 1, 2010Police used a combination of evidence to build the case against the man accused in the 1997 murder of Renee Pellegrino, including DNA, inconsistent statements Dickie E. Anderson Jr. made to police over the years and his own admission that he was with Pellegrino shortly before her body was discovered in Waterford.
113Dickie Anderson 2012Over 13 years a case was built using DNA, inconsistent statements Anderson had made, and his admission that he was with Pellegrino shortly before her body was discovered in a cul-de-sac off Parkway South, CT.
114Dickie Anderson 2012 This is not a trick question “If you had to vote right now in this case, guilty or not guilty, what would you vote?”(A) guilty(B) not guilty(C) can’t vote; I don’t know the facts of the case
115Dickie Anderson 2012 This is not a trick question “If you had to vote right now in this case, guilty or not guilty, what would you vote?”This is a common question during jury selection, and many people are tempted to respond, incorrectly, that they can’t vote because they don’t know the facts of the case.The correct answer, as supplied by a woman in New London, CT who was eventually selected to serve on the panel, is “not guilty.”
116Dickie Anderson 2012In a second case against, police charged Anderson with killing 29-year-old Michelle Comeau of Norwich in Anderson was previously charged with the murder of Renee Pellegrino. The Comeau case did not involve DNA.Both of the women had been working as prostitutes and were victims of strangulation. Police found Comeau’s body dumped along an access road to the Norwich Industrial Park near Dodd Stadium in May, Anderson has acknowledged he knew both victims. He told police he had been with Pellegrino on the night she disappeared from downtown New London.
117Dickie Anderson 2012Pellegrino had been strangled, and her killer had posed her naked body. In May 1998, police found Comeau’s body dumped along an access road to the Norwich Industrial Park near the Norwich-Franklin town line. She too had been strangled. The state claims her killer was in the process of posing her naked body in a similar manner but was interrupted and left the scene. Anderson’s DNA was found on Pellegrino's body, but there is no DNA evidence to link him to the Comeau case. He knew both women and admitted to having sex with them on the day they were killed.
118Dickie Anderson 2012One inmate reported that Anderson admitted to killing “Renee” and said several times that he would have never done it if he had known Pellegrino was pregnant. She was 17 weeks pregnant when she died, according to the state Office of the Chief Medical Examiner.Police also spoke with former girlfriends of Anderson who told them he was rough during sex. One woman said Anderson threatened her and said he had gotten away with killing somebody. The woman said Anderson said he fought with a prostitute who kept asking him for money, and that he hit and killed the girl in Bates Woods in New London..
119Dickie Anderson 2012The police also interviewed a girlfriend who broke up with Anderson in She recalled that twice Anderson choked her so hard he left red marks on her neck, the warrant says. She turned over to police a picture of her injuries that she said a friend had taken.Another former girlfriend, whom Anderson was convicted of strangling in 2008, said the two had argued about her getting a job and that Anderson threw her to the floor and began choking her. She said if police did not break into the apartment and physically remove Anderson from her, she thinks she would have died..
120Dickie Anderson 2012Dickie Anderson Jr., a self-confessed “trick artist” who told police he often traded crack cocaine for sex with prostitutes, was connected by witnesses to both of the women he is accused of killing.In 2008, the state forensic laboratory had notified police that DNA taken from Pellegrino’s body matched a DNA sample that had been taken from Anderson. The laboratory also found DNA on Pellegrino from an unknown source.
121Dickie Anderson 2012 Anderson’s previous convictions include: • Jan. 2007, third-degree assault• November 2005, violation of a protective order• September 2005, second-degree failure to appear incourt, second-degree threatening, second-degreecriminal mischief• May 2003, violation of probation, evading responsibility,second-degree failure to appear in court, third-degreeassault• July 2002, interfering with a police officer• March 1999, second-degree assault
123Dickie Anderson 2012 This is not a trick question “If you had to vote right now in this case, guilty or not guilty, what would you vote?”(A) guilty(B) not guilty(C) can’t vote; I don’t know the facts of the case
127States With and Without the Death Penalty 2012 STATES WITH THE DEATH PENALTYAlabama Arizona Arkansas California Colorado Delaware Florida Georgia Idaho Indiana Kansas KentuckyLouisiana Maryland Mississippi Missouri Montana Nebraska Nevada New Hampshire North Carolina Ohio Oklahoma OregonPennsylvania South Carolina South Dakota Tennessee Texas Utah Virginia Washington Wyoming ALSO - U.S. Gov't - U.S. MilitarySTATES WITHOUT THE DEATH PENALTY (YEAR ABOLISHED IN PARENTHESES)Alaska (1957) Connecticut** (2012) Hawaii (1957) Illinois (2011) Iowa (1965) Maine (1887) Massachusetts (1984) Michigan (1846)Minnesota (1911) New Jersey (2007) New Mexico* (2009) New York (2007)# North Dakota (1973) Rhode Island (1984)*** Vermont (1964)West Virginia (1965) Wisconsin (1853) ALSO Dist. of Columbia (1981)
128The Death PenaltyCapital punishment in Rhode Island
129The Cheshire, Connecticut, home invasion murders occurred on July 23, 2007, when a mother and her two daughters were murdered during a home invasion in Cheshire, Connecticut. The Hartford Courant referred to the case as “possibly the most widely publicized crime in the state’s history.” In 2010, Steven Hayes was convicted of the murders and sentenced to death. His accomplice, Joshua Komisarjevsky, was found guilty on October 13, 2011, and sentenced to death on January 27, 2012.In the late afternoon of July 22, 2007, Jennifer Petit and her daughter Michaela went to a local grocery store in Cheshire. They picked up food for the evening meal which would be prepared by Michaela. They, along with Jennifer’s other daughter Hayley, would be killed several hours later in a home invasion.
130Home invasionAs Jennifer Hawke-Petit and 11-year-old Michaela Petit shopped at a local supermarket, unbeknownst to them, they had been targeted by Komisarjevsky, who followed them home, and planned to later rob the family by home invasion. Anticipating their deeds, Hayes and Komisarjevsky exchanged text messages that were later introduced in court. Hayes first messaged Komisarjevsky: “I'm chomping at the bit to get started. Need a margarita soon”. Hayes then texts: “We still on?” Komisarjevsky replies “Yes”. Hayes’ next text asks, “Soon?”, to which Komisarjevsky replied with “I’m putting the kid to bed hold your horses”. Hayes then asserts “Dude, the horses want to get loose. LOL”.According to Hayes’ confession, the two men planned to rob the house and flee the scene with the family bound and unharmed. Hayes attributed the outcome of the spree to a change in their plan. Upon their early morning arrival, they found William Petit sleeping on a couch on the porch. With a bat Komisarjevsky had found in the yard, he bludgeoned William and then restrained him in the basement at gun point. The children and their mother were each bound and locked in their respective rooms. Hayes says he and Komisarjevsky were not satisfied with their haul, and that a bankbook was found which had an available balance. Hayes convinced Jennifer to withdraw $15,000 from her line of credit. A gas station’s video surveillance shows Hayes purchasing $10 worth of gasoline in two cans he had taken from the Petit home. After returning to the house, and unloading the gas, he took her to the bank. The prosecution later entered this as evidence of premeditation.
131Home invasionThe bank surveillance cameras captured the transaction which shows Hawke-Petit in the morning of July 23 as she informed the teller of her situation. The teller then called 911 and reported the details to police. Hawke-Petit left the bank, was picked up by Hayes, who had escorted her there, and drove away. These actions were reported to the 911 dispatcher and recorded in real time. The teller stated that Hawke-Petit had indicated the assailants were “being nice”, and she believed they only wanted money.The Cheshire police response to the bank tellers “urgent bid” began with assessing the situation and setting up a vehicle perimeter. These preliminary measures employed by the police exhausted more than half an hour and provided the time used by the assailants to conclude their modified plan.
132Home invasionDuring this time, Hayes and Komisarjevsky escalated the aggravated nature of their crimes. Komisarjevsky sexually assaulted the 11-year-old daughter, Michaela. Komisarjevsky, who had photographed the sexual assault of the youth on his cell phone, then provoked Hayes to rape Hawke-Petit. While Hayes was raping Hawke-Petit on the floor of her living room, Komisarjevsky entered the room announcing that William Petit had escaped. Hayes then strangled Hawke-Petit, doused her lifeless body and parts of the house including the daughters rooms with gasoline. The daughters, while tied to their beds, had both been doused with gasoline; each had her head covered with a pillowcase. A fire was then ignited, and Hayes and Komisarjevsky fled the scene. 17-year-old Hayley and 11-year-old Michaela both died from smoke inhalation.
133Home invasionWilliam Petit had been able to free himself, escape his confines, and call to a neighbor for help. The neighbor indicated that he did not recognize Petit, due to the severity of Petit’s injuries. In court testimony, William Petit stated that he felt a “jolt of adrenaline” coupled with a need to escape upon hearing one of the perpetrators state: “Don’t worry, it’s going to be all over in a couple of minutes”. Petit then told the jury, “I thought, it’s now or never because in my mind at that moment, I thought they were going to shoot all of us”.Hayes and Komisarjevsky fled the scene using the Petit family car. They were immediately spotted by police surveillance, pursued by police, apprehended, and arrested one block away.The whole invasion lasted seven hours.The scenario was revealed in a confession by Hayes just hours after the killings. Detectives testified that Hayes exuded a strong stench of gasoline throughout the interrogation. Each perpetrator was said to have blamed or implicated the other as the mastermind and driving force behind the spree. There were even attempts to blame William Petit as an accomplice. A diary kept by Komisarjevsky was entered into evidence which also blamed William. This account called him a “coward” and claimed he could have stopped the murders had he wanted to.
134Joshua A. Komisarjevsky Born( ) August 10, 1980 (age 31)Conviction(s)Capital felony, murder, sexual assault, kidnapping, and arsonPenaltyDeath sentenceStatusConvicted of 17 out of 17 charges, including 6 capital felonies
135Steven J. HayesBorn( ) May 30, 1963 (age 49) Homestead, Florida, U.S.Conviction(s)Capital felony, murder, sexual assaultPenaltySix consecutive death sentences plus 106 yearsStatusConvicted on 16 counts; sentenced to death on six counts of capital felonyChildrenA son and a daughter
138I. The Hollow Men We are the hollow men We are the stuffed men T. S. EliotMistah Kurtz—he dead. A penny for the Old GuyI.We are the hollow menWe are the stuffed menLeaning togetherHeadpiece filled with straw. Alas!Our dried voices, whenWe whisper togetherAre quiet and meaninglessAs wind in dry grassOr rats’ feet over broken glassIn our dry cellarShape without form, shade without colour,Paralyzed force, gesture without motion;Those who have crossedWith direct eyes, to death’s other KingdomRemember us—if at all—not as lostViolent souls, but onlyAs the hollow menThe stuffed men.
1391. Who recognizes, identifies, individualizes and evaluates physical evidence using the methods of natural sciences in matters of legal significance?(A) detectives(B) criminologists(C) criminalists(D) criminals(E) local police
1402. The CT CODIS Database collects two types of samples; (1) Convicted Offender Samples that include all Felony Convictions (since 03/01/04) and, (2) Forensic Unknowns that include any DNA profile from an evidentiary sample that does not match the victim or an elimination known. There are currently 10,793 offenders in CT Database and over 1,500 offender samples are added per month. Currently there are how many felons on the CT database?(A) 1 out of 50 males in CT(B) 1 out of 100 males in CT(C) 1 out of 1,000 males in CT(D) 1 out of 10,000 males in CT(E) none of these answers is correct
1413. CODIS stands for:(A) combined DNA Index System(B) combinatorial Operations for DNA Identification Systems(C) criminalists for DNA Indexing Systems(D) none of these answers are correct
1424. PCR is used in plant genetics, animal cloning, drug discovery, cancer research and forensics. (A) false(B) true(C) only when a plant geneticist thinks his collaborator stole his work(D) only when forensic analysis involves plant material from a crime scene
1435. DNA analysis is now a common and widely accepted forensic tool used to analyze evidentiary DNA. (A) true(B) false(C) only in less than half the states(D) only used on convicted felons
1446. In the national debate about the use of forensic DNA analysis and the building of DNA databases (such as an all felon database vs. an all arrestee database of a general public database) there are two competing views. One view holds that DNA testing and the building of databases is a matter of public safety: DNA solves crimes; only criminals should fear DNA testing or databases. The opposing view holds that:(A) there are privacy concerns, maintaining that DNA information is different where there is significant potential for abuse(B) misused DNA evidence has obviously exonerated guilty people citing the OJ Simpson trial, no one is looking for the criminal of that crime(C) that the PCR approach to DNA testing is not accurate or reliable(D) DNA databases will be far too costly to maintain or use
1457. Considering the National debate on DNA forensic databases which of the following is not an issue? (A) constitutionality of taking DNA samples from arrestees and suspects(B) practical/financial considerations of expanding DNA databanks(C) what happens to the sample after profiling?(D) post-conviction DNA testing. >150 exonerated-August 2004(E) accuracy of the DNA testing protocols
1468. (STR) technology is used to evaluate specific regions (loci) within nuclear DNA. Variability in STR regions can be used to distinguish one DNA profile from another. The Federal Bureau of Investigation (FBI) uses a standard set of 13 specific STR regions for CODIS. CODIS is a software program that operates local, state, and national databases of DNA profiles from convicted offenders, unsolved crime scene evidence, and missing persons. The odds that two individuals will have the same 13-loci DNA profile is extremely unlikely. STR stands for:(A) Standard Temperature Reactions(B) Statewide Tracking Reliabilities(C) Short Tandem Repeats(D) Starwars Tracking Reactions
1479. There was a homicide in A plastic bag was found in the shallow grave of the victim with a bloody jacket and some trace hairs were recovered. What techniques would be best used to match the hairs to the suspect’s cat, snowball?(A) PCR providing a perfect match with cat STRs(B) all of these techniques together provide the best case(C) PCR of the blood from the jacket to tie the DNA of the suspect to the jacket(D) scanning electron microscopy of the trace evidence showed that they were those of a cat
14810. Research on how the principles of biology and evolution are involved with criminal behavior is in its infancy. The principal mechanism of evolution, which includes two processes that operate together: chance variability and selection, is called:(A) natural selection(B) ingenuity(C) conjugation(D) predation(E) intelligent design
14911. DNA databases are controversial because: (A) because of the conflict between public safety and civil liberties(B) they have not proven useful to solving crimes(C) they use crime genes to evaluate unsuspected criminals from the pubic(D) they have been too expensive or computationally too difficult to manage on a large scale
15012. There was a double murder in Seattle in 1996 and preliminary investigation came up with two suspects. A couple had been tortured and shot dead along with their pet dog. There was blood on one of the suspect’s clothing. The blood on the clothing could be best matched with that of the dog by doing what?(A) looking for matching dogs hairs at the crime scene(B) finding no dog blood on the second suspect(C) using PCR on both samples with known molecular makers for dogs(D) obtaining the records from the local veterinarian
15113. What are the odds of two people’s DNA matching one another given the nationally used 13 CODIS core of STR loci used by state and federal forensics experts?(A) over 1 in a billion(B) 1 in 3 million(C) 1 in 700,000(D) 1 in 7,000(E) less than 1 in 90
15214. Which of these items could be a source for possible DNA forensic testing: (A) all of these items can be used for DNA testing(B) cigarette butts(C) general clothing: including gloves, bandanas, ski masks, baseball caps(D) condoms (inside vs. outside)(E) a bloody knife
15315. How does forensic testing help in a criminal investigation? (A) by linking a suspect to a victim(B) by linking a victim to crime scene(C) by linking a suspect to crime scene(D) by any or all of the answers
15416. You are a prospective juror for a trial which you have read about in you local newspaper. You are asked, “If you had to vote right now in this case, guilty or not guilty, what would you do?” What should be your response according to the law in the United States?(A) guilty(B) not guilty(C) not enough evidence(D) none of these answers
15517. Renee Pellegrino was an accomplished scholar with a law degree, had become addicted to crack cocaine and turned to prostitution. She was 40 years old and pregnant when her naked body was discovered in a cul-de-sac off Waterford Parkway South, CT. on June 25, 1997 murdered. In 2008, the state forensic laboratory had notified police that DNA taken from Pellegrino’s body matched a DNA sample that had been taken from Dickie Anderson Jr. The DNA evidence:(A) proved that Dickie Anderson was guilty(B) showed that Dickie Anderson was not guilty(C) provided circumstantial evidence that linked Dickie Anderson to the crime(D) not enough evidence(E) none of these answers