We just tried to think of him as gone. This case is one of those cases that just really sticks with you. Nobody wanted to give up on this case. Narrator luckily, the lead investigator, jim scharf, was a man who knew more than most people about working a cold case. Ive mentioned to people before that if anything happens to me, i want him to investigate what you know, try to find the perpetrator. Narrator in 2018, the alleged golden State Killer was finally behind bars, thanks, said prosecutors, to a new forensic tool called genetic genealogy. We knew we could and should solve it using the most innovative Dna Technology available at this time. Narrator the question now was whether that science could reveal who killed jay and tanya
Had no idea detectives were following him, discarded a paper coffee cup, which was seized and immediately tested for dna. Detectives and analysts waited as their case, now more than 30 years old, hung in the balance. As im going along through the series of markers, theyre matching, and so its almost like winning a lottery, and youre saying, okay, thats a match. Thats a match. Scharf the odds of this not being William Talbott was 1 in 180 quadrillion. You would have to have 36 Million planets with the same population as earth to find William Talbott with that dna profile. Narrator oldfashioned forensics also sealed talbotts fate. His Palm Print matched the partial Palm Print lifted from jays Van Way back in 1987
Dozens of plastic zip ties, presumably used to bind both victims, and among the various items of tanyas clothing, one item stood out. Scharf they found tanyas pants, which eventually were found to have semen on the pant leg. Narrator they also took swabs from Tanyas Body during her autopsy. And so they kept some of the vaginal swabs, and they retained them, frozen, in the laboratory. Narrator but this was 1987, and Dna Science was in its infancy. In fact, the Firstever Conviction using Dna Evidence happened in england just weeks before jay and tanyas murders. Collins when these murders happened in 1987, we werent using dna testing. It hadnt been brought into the lab yet. Narrator despite being relatively unfamiliar with dna technology, analysts realized
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