In the summer of 1978, the body of a young woman was found partially submerged in a large drum of water in the small town of Wood River, Illinois. As a result, Bogan was convicted and sentenced to life in prison in the first murder case in the US that involved plant DNA. Trace Evidence – How Fibers and Hair are used to aid in Crime Solving. One of the clues was some pink fibers found on Kati Lisk's body. However, with no body, it was difficult to charge Richard with anything. When evidence is received in the Trace Evidence Unit, the case is assigned to an examiner. The government has identified almost 3,000 cases in … However, careful criminals sometimes leave little to no evidence, making the investigation of the scene or surrounding areas crucial. Actually, trace evidence refers to a wide variety of materials left behind at a crime scene in small quantities when a crime is committed. Dr. Lee reconstructs how he solved some of his cases during his 40 years as a forensic scientist. But the question was whether he could prove it. View on-demand presentations from past NIJ-sponsored symposia. Police sent an undercover agent to the parties to befriend Trepal, who eventually rented his house to the officer when he decided to move. Murder of Ranya Rison, 1993 : Solved by new testimony. Trace Evidence is a true crime podcast that focuses on unsolved cases, from chilling murders to mysterious disappearances. Fibers – how are they used in court cases? Join host Steven Pacheco as he examines each case, diving deep into the evidence and exploring the theories which revolve around them. Luckily, the evidence was allowed to be used. Police were only able to recover some blood, hair, and fiber from his car. … To review concepts related to trace evidence, read through the brief lesson titled Trace Evidence: Definition, Analysis & Examples. The playing cards, which feature photos and information about murder victims within the state, keep the cases public and in the focus of inmates. The only evidence that was found at Atwood’s home linking him to the abduction was a dent and traces of pink paint on the car’s bumper. Faced with that damning piece of evidence, he first pleaded not guilty by reason of insanity but later entered a simple guilty plea. Trace evidence, though often insufficient on its own to make a case, may support other evidence or even prompt a confession. Trace Evidence: The Case Files of Dr. Henry Lee Season 1 (21) IMDb 8.0 2004 X-Ray 13+ Dr. Henry Lee, the noted forensic scientist recalls past cases in a series that revisits crime scenes and includes comments from investigators, prosecutors and defense attorneys. Trace evidence is commonly left at crime scenes. The sudden, unexplained illness of middle-aged mother Peggy Carr seemed to affect nearly everyone in her small, close-knit community of Alturas, Florida. Even this breakthrough was useless without a set of teeth for comparison, though. Then a mysterious man approached and the two walked out together. Her name was Karla Brown, and she had been brutally beaten, raped, and murdered. Police found a few strands of blond hair, some skin, and a fingernail, but since this was before DNA technology became available, all police could determine was that the skin they found was the same type as Helle’s. It was all prosecutors had to go on, since no eyewitnesses could place Spencer at any of the victim’s houses, but DNA had never been used to convict someone in court. The eight-year-old girl had left her house on her bike one day, meaning to mail a birthday card for her aunt, and was never seen again. Eventually, they discerned where the outfit had been purchased and located an identical outfit. In October, 1904, a forensic scientist in Frankfurt, Germany named Georg Popp was asked to examine the evidence in a murder case where a seamstress named Eva Disch had been strangled in a bean field with her own scarf. That small piece of physical evidence, in addition to the testimony of a number of other people, secured Fred Grabbe’s conviction for the murder of his wife. They hired a private investigator to look into the matter, and he uncovered rumors of physical abuse and serial philandering on Richard’s part. Armed with this new evidence, the US government deported Trifa, who lived the rest of his life in Portugal. It is rare this type of evidence is used alone to support a case in a court of law. Paint trace evidence is especially relevant in cases where automobiles are involved, but it can also be useful in other cases. Five-year-old Melissa Brannen was enjoying a local Christmas party at her apartment building in 1989 when she disappeared. Most people unknowingly leave trace evidence on the scene of a crime, and it is often difficult to remove. However, careful criminals sometimes leave little to no evidence, making the investigation of the scene or surrounding areas crucial. Trace evidence solved this case, and it is important and valuable to have a team of forensic scientists at the state's Bureau of Criminal Investigations who specialize in it. With a number of expert contributors, the volume presents studies where material traces transferred during contact between products has solved difficult criminal cases. Twenty-four years later, family and investigators are still hoping to find the truth and discover what happened to the twenty-eight year old mother of three. Special Agent Doug Deedrick, an FBI trace evidence expert who was the lead forensic agent in the case, had a hunch all three slayings were linked. Maddeningly, he never left any physical evidence and always covered his face with a ski mask, leaving him unidentifiable. The Trace Evidence Unit (TEU) identifies and compares specific types of trace materials that could be transferred during the commission of a violent crime. Prosecutors in the case against Alejandro Henriquez presented their strongest evidence to a Bronx jury yesterday: hair and fiber samples they say … There, he killed three more people early in 1978, and when he was finally captured in February of that year, the physical evidence in those cases led to his conviction. (In fact, in the course of your everyday life, you leave trace amounts of material wherever you go!) due!tothe!destructive!nature!of!adhesives.! Trace evidence remember, can be hairs, fibers, specks of clothing or objects that are for all intents and purposes, nearly invisible or invisible to the naked eye. Trace Evidence has been the recipient of multiple accolades, including being listed by Oxygen.com as one of the "7 True Crime Podcasts You Should Listen to Right Away" as well as  being recognized by WhatPods.com as one of their "Best True Crime Podcasts." By all accounts, Charlotte Grabbe was not in the best of marriages. Stayathomemum.com listed Trace Evidence #3 on their list of “42 Chilling True Crime Podcasts that are Just Terrifyingly Terrific.” Vox.com writer Aja Romano in her article “Netflix’s Ted Bundy documentary review: Conversations with a Killer” referred to Trace Evidence as one of the podcasts that goes above and beyond to memorialize and focus on victims. In the early morning hours of Monday, January 20th, 1997, twenty-eight year old Robin Trivisonno was looking for a ride. Despite not having a body, authorities suspected murder, and they had their sights trained on Fred. These trace materials include human hair, animal hair, textile fibers and fabric, rope, soil, glass, and building materials. After Vicki’s body was finally found, Atwood was convicted of her murder and sentenced to death in 1987. He came from Romania to the United States after World War II and rose to the rank of archbishop in the Romanian Orthodox Church. The Mensa member and his wife frequently held murder mystery parties, one of which featured thallium as a method of murder. This turned out to be enough, though, as further testing matched the paint to Vicki’s bike, and an accident reconstructionist matched the bike pedal to the dent. On May 2, 1992, Denise Johnson was murdered. Neither has ever been seen again. Trepal was subsequently arrested and convicted on a number of counts, including murder, for which he was sentenced to death. After ruling out a well contamination, police investigated the house and discovered trace amounts of thallium in a few cans of Coca-Cola in the Carr’s trash. Although the crime appeared to be rushed and poorly planned, there seemed to be no evidence pointing toward a suspect. In a case that would come to be known as the “Wood Chipper Murder,” Helle Crafts disappeared unexpectedly from her home in Connecticut. Trace Evidence is a true crime podcast that focuses on unsolved cases, from chilling murders to mysterious disappearances. Her strangled body was discovered the next day in the remote wilderness outside of Phoenix, Arizona. In 1999 the TV science series NOVA aired a program on the Sheppard case which re-examined the forensic evidence surrounding the case. Sometimes, all it takes is one tiny piece of evidence that would have been incredibly easy to overlook to nab the bad guy. The fibers were similar to what she had been wearing that night, but police had nothing to compare it to. Luckily, an eyewitness came forward who claimed to have seen a man operating a wood chipper on a bridge over the Housatonic River. Botanical trace evidence is also obtained from plant cells found in gastric contents. In 1981, she disappeared, never to be found. Their erroneous evidence was found in a full 90% of the trial transcripts the team has studied. Comeaux might have gotten away with his crimes or even committed countless more had he not made one simple mistake. Her two sons also fell ill from the banned poison that was once used to kill rodents, but they survived. There are plenty of eyewitnesses and lots of trace evidence left at the scene, which makes the police’s job much easier. However, Bogan claimed that Johnson, who he said was a hitchhiker, had stolen his pager. First criminal case using earthen materials as evidence. Visit the Trace Evidence Merchandise Shop at TraceEvidence.Threadless.com, Episode 145 - The Disappearance of Robin Trivisonno is available now and explores the 28 year old mother of three's…. The complex’s groundskeeper, Caleb Hughes, had also vanished around the same time, so he was immediately tabbed as a suspect. Trace Evidence Analysis continues and builds upon the tradition of its successful companion title Mute Witnesses (2000).. Investigators faced a tough case; few clues, no major leads and their main person of interest was unidentified. A pager belonging to the father of a man named Mark Bogan was found near the body, and an eyewitness reported a truck similar to Bogan’s at the scene around the time Johnson was killed. The case of the girl in the bathtub In December 1977, the body of 16-year-old emancipated teen Sharon Schollmeyer was discovered by her mom—strangled to death in … Join host Steven Pacheco as he examines each case, diving deep into the evidence and exploring the theories which revolve around them. Since the tree was fairly common in the area, that wouldn’t have been enough to tie Bogan to the crime without the work of a professor of molecular genetics from the University of Arizona who matched the DNA of the tree at the scene to the pods found in the truck. Visit SimpliSafe.com/Trace for a … There are various forms of minute evidence that forensic teams use to corroborate additional findings. By all accounts, Valerian Trifa was a respected member of his community. What no one knew was that he was also a serial rapist, terrorizing the women of his town for 13 of those years. The examiner will read the incoming communication to determine the nature of the offense, the names of the suspects and victims, and the types of requested examinations. Since even the police had only recently discovered this detail, it was all but impossible for an innocent member of the public to know about it. Eventually, his former girlfriend came forward to claim that Charlotte had been strangled by her husband, who had burned the body by a tree near the Wabash River. The collection and preservation of trace evidence is more difficult than other, larger forms of physical evidence. ***Sponsored by: Simplisafe. The book contains nine entirely new cases, each self-contained in its own chapter, covering everything from homicides to accident reconstruction. For each unsolved case, there are the victims and their families, who want answers and the abductors and murders who hide the truth. After two years, investigators finally noticed a set of bite marks on Brown’s shoulder. Because trace evidence can be any number of things, from a paint chip to a piece of glass to plant debris, there are numerous different methods used for analysis. There are plenty of eyewitnesses and lots of trace evidence left at the scene, which makes the police’s job much easier. Known as “The Southside Strangler,” Timothy W. Spencer terrorized the state of Virginia in the fall of 1987, raping and killing four women in their own bedrooms. Investigators can potentially link a suspect and a victim to a mutual location through trace evidence. Her husband, Richard, claimed she had merely returned to her native country of Denmark to live with her mother, but her friends didn’t believe the story. Helle had previously warned them not to believe stories of disappearance or accident in the event of her death. PodcastManiac listed Trace Evidence as one of the "Top 5 True Crime Podcasts I Subscribe To." He had a tendency to leave cigarette butts at the victims’ houses, and the epithelial cells from the saliva on the cigarettes were matched to a sample taken from Comeaux. It had not been quite clear what happened … His implication in her murder made David Vasquez, who had previously been convicted of the crime, the first person to be exonerated due to DNA evidence. After one mistrial and the discovery of a host of circumstantial evidence, Richard was convicted of his wife’s murder and sentenced to 50 years in prison. Trace evidence is used to eliminate suspects and also disprove theories or shape theories as it either strengthens the case or weakens it on grounds of insufficient evidence. No physical evidence of the body’s cremation was found in the dirt around the area, but scientists noted that petroleum fuel had damaged the tree’s growth around the time Fred was said to have burned the body. Soon after, some disturbing comments led them to a 42-year-old chemist who lived next door named George James Trepal. The case went cold almost immediately. Locard’s Exchange Principal – when a criminal comes in contact with a person or object a cross transfer of evidence occurs. Not only was he sentenced to death for the Southside Strangler murders, he was also implicated in a dozen other crimes, including the murder of Carolyn Jean Hamm. After four long months, several pieces of evidence were found in an unexpected place leading investigators to wonder if they had been there all along or if Robin's abductor might have planted them. In 1975, after discovering that he had hidden his time in the group from immigration officials, the US government felt they had enough evidence to strip him of his citizenship, though he remained in the country. The Strength of Trace Evidence: Two case studies where unusual trace evidence has impacted legal proceedings Dr. Kari Pitts*, David Detata, Rees Powell and Peter Collins, Forensic Science Laboratory, ChemCentre, Perth WA, Australia ChemCentre (Perth, West Australia) Typically, trace evidence samples include human and animal hair, natural and manmade fibers, fabrics, rope, soil, glass, and building materials. Connecticut Division of Criminal Justice The introduction of the Cold Case Homicide Playing Cards into Florida jails in 2007 resulted in the resolution of murder cases that had gone cold. Cold-case playing cards for prisoners in Connecticut. With Henry Lee, Tim Palmbach, Andrea Altieri, Peter Brazelle. Fred was an abusive husband and father so prone to fits of violence that Charlotte left a letter in her safe-deposit box stating that she was afraid her husband was going to kill her. Episode 145 - The Disappearance of Robin Trivisanno, ***Sponsored by: BetterHelp. Trace evidence like glass fragments and paint chips can be essential clues in solving a case. Some UFO cases have physical trace evidence left behind—burned vegetation and soil, ground landing impressions, and metal scrapings on a broken rock in one of the impressions—these are those cases. Trace!evidence!canalso!be!gathered!by!tape!lifting,!however,!this!is!not!ideal! Most recently, Women.com listed Trace Evidence #3 on their list of the "27 Best True Crime Podcasts." Visit BetterHelp.com/Trace to save 10% today!******BestFiends! He left very little evidence at the scenes of his crimes, most notably small amounts of semen. The conviction, absent any physical evidence aside from these miniscule remnants or even a body, was a landmark case in the state of Connecticut. After they matched, Prante was convicted of murder and sentenced to 75 years in prison. All they knew was that Lafayette and a neighboring town had been struck by a series of unsolved rapes that all appeared to have been committed by the same man. Asking around to friends in the bar she previously worked at, no one was able to help. Subscribe on iTunes, Stitcher, Pocket Casts, TuneIn, Player FM, Blubrry,  RadioPublic, YouTube, iHeartRadio, Spotify, Google Podcasts, and More. By the time police found him at 1:00 AM the next morning, however, he had suspiciously already washed all his clothes from the previous night, destroying any potential evidence. Sure enough, it matched DNA taken from Spencer’s blood. The Disappearance of Sandra Sollie. Given that there was virtually no physical evidence tying him to the crime, police were stuck. Teresa's sister was living with Lorenzo and her brother, Tom, had a vendetta against Paul.Blood found at the scene belonged to Paul and Sarah, as well as hair and fragments of flesh. Also include in your message whether or not you would like to remain anonymous or if I may give you a shoutout on a future episode. The only clues were a few tiny fibers and a couple of strands of hair. Dr. Jeffrey MacDonald, Army captain and Green Beret accused When the fibers matched, police charged Hughes with abduction with intent to defile, since they couldn’t prove Melissa had been killed. Included on the website are: Police traced it to Frank Jarvis Atwood, a California man on parole for molesting an eight-year-old boy. Download Today on the Apple App Store or in Google Play!***. Nova also produced an excellent supporting website entitled "The Killer's Trail". Randal Comeaux was a longtime member of the sheriff’s department in Lafayette, Louisiana, having worked there for more than 20 years. Fibers, hair, soil, wood, gunshot residue and pollen are only a few examples of trace evidence that may be transferred between people, objects or the environment during a crime. The only evidence left at the scene of her abduction was her bike, which was abandoned just a few blocks away from her house. Trace evidence is a game-changer in many forensic cases, as this second volume of analysis by Houck shows. Trace Evidence. Police immediately scoured the home and discovered a small bottle of thallium in the garage. In "Ad Large Strike Killer Deal," an article written by Radio Ink Magazine about the new True Crime Network, Trace Evidence was pointed out as one of the top titles in their collective. However, since the 1950s, he had been the subject of a quiet investigation after other Romanian immigrants claimed he used to be a member of the Iron Guard, Romania’s preeminent pro-Nazi group during its occupation. Luckily, a local gym teacher who worked at the school only a block away from the site of Vicki’s abduction noticed a suspicious-looking sports car near the school and wrote down the license plate number. The archbishop denied authorship, but after using laser technology to examine the postcard, a latent print was detected that matched him perfectly. Most crucial was the matching of a bite mark on the buttock of victim Lisa Levy to the Bundy’s distinctive, crooked and chipped teeth. The abduction of Vicki Lynne Hoskinson gripped the Tucson area in the mid-1980s. 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She and her husband, Fred, fought constantly for 23 years, even divorcing and remarrying a short time later. Though Melissa was a potential match for the hair, she was eventually ruled out as the source of the bloodstains. Within a few weeks, she was comatose, an apparent victim of thallium poisoning. He was convicted and sentenced to 50 years in prison. They caught a break in 1982, when a woman reported that she overheard a man named John Prante mention the bite on Brown’s shoulder. Police exhumed Brown’s body to create a mold of the skin where she had been bitten, and another mold was taken from Prante’s mouth. No trace of Lorenzo was ever found. While witnesses were able to give extremely detailed descriptions, no one knew his name, where he was from or what he was driving. He was given three life sentences. Many of the common foods we eat contain seeds or other plant parts with specialized cells having thick walls of … WCCO News Anchor Amelia Santaniello listed Trace Evidence as one of her favorite podcasts in “Sharing their Favorite Podcasts” for TwinCities.com. To make a one time donation, rather than becoming a monthly Patron, please click the link below. Police indicated that the quantity of blood signified fatal wounds. That is, until one of the detectives noticed a small abrasion on a nearby tree and remembered that two small seed pods from that species of tree had been found in the back of Bogan’s truck. Without physical evidence linking Trifa to the crimes, investigators turned to the West German government, who were in possession of a postcard written to Heinrich Himmler and signed by Trifa. Came forward who claimed to have seen a man operating a wood chipper on a number of expert,! Suspect and a victim to a mutual location through trace evidence is a game-changer many... 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