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Forensic Files II

and just somehow crossed paths with tanya and jay. narrator: in june of 2019, william talbott was convicted of aggravated murder and sentenced to two consecutive life terms without the possibility of parole. his case is a forensic first. the suspected golden state killer was exposed by genetic genealogy. in talbott's case, in a legal precedent, the genetic genealogy evidence was presented to a jury and helped put him behind bars. this is a game-changer for investigators, for forensic scientists, for prosecutors. genetic genealogy is the best crime-fighting tool that's come along since dna came along. moore: in jay and tanya's case, genetic genealogy was able to develop a suspect

William-earl-talbott , Murder , Paths , Jay , Tanya , 2019 , June-of-2019 , Case , Genetic-genealogy , First , Life-terms , Killer

Forensic Files II

starks: chanin was tortured, and she was beaten so bad that she couldn't have an open-casket funeral. it was a horrific thing to think about your friend, having to suffer and be tortured like she was. narrator: investigators on the scene theorized chanin had been strangled and that affected how they collected evidence. we swabbed for dna prior to moving chanin's body from the crime scene. narrator: but the most shocking part of this crime was what chanin's killer did after the murder. bryant: when cops come upon chanin's body, the first thing that strikes them is how bizarre the positioning is. shover: i'd never seen anything like this. i've never seen a dead body positioned and staged the way this one was. narrator: this staging took time, and a lot of it. so did the attempt to clean up the crime scene.

Chanin-starbuck , Thing , Friend , Starks , Funeral , Narrator , Evidence , Dna , Body , Scene , Investigators , Crime-scene

Forensic Files II

there's no way i believed that she would do it. narrator: she wasn't the only one. the jury in kaity's first trial couldn't reach a verdict. lisi: i just remember honestly going out, walking to my car, crying for about two minutes in the parking lot, and then saying, "okay, that's it. that's enough. it's time to get back to work and see if we can put this case together again." narrator: and that's what happened. in a second trial, in november of 2017, kaity conley was found guilty of first-degree manslaughter and sentenced to 23 years in prison. she still maintains her innocence, but the dna, the evidence from the typewriter, the attempted frame-up, the web searches, and the purchase of the colchicine all pointed in one direction -- to a young woman with a bizarre motive for murder. vannamee: a lot of people have had a difficult or a tough time accepting the fact that kaitlyn conley is guilty for the death of mary yoder.

Narrator , Way , Parking-lot , Jury , Car , She-wasn-t-the-only-one , Kaity-s-first-trial-couldn-t-reach-a-verdict , Lisi , Two , One , Case , Kaity-conley

Dateline

in peoria. nathan pleaded not guilty. he insisted he never would've done anything to harm his beloved wife. >> there was a time there was a difficulty, the first person i would talk to would be denise. there were several times within the first few days after her death, trying to figure out what to do with the children next, i wanted to grab the phone and call her. she was my support. >> but, denise was not there to support nathan because, the state argued, and he killed her. >> you will have eyewitness identification. dna. gunshot residue. motive? one person. he is sitting across from you. >> the trial began july 14, exactly 17 months after the murder. this reporter cover the trial for nbc's station in peoria.

Lithuanian-student-nathan , Wife , Person , Anything , Peoria , Difficulty , Denise-leuthold , Children , Death , Phone , Times , Support

Forensic Files II

johnston: all of the bedding has been removed, and it is in the wash machine. whatever staining had been on the bedding is most likely removed in the wash, and so we're unable to match it up. narrator: oddly, for a crime with clear sexual motivations, chanin had not been raped. the autopsy revealed petechial hemorrhages in chanin's eyes -- confirmation that strangulation was the cause of death. and this gave investigators a possible break. there was something chanin's killer apparently didn't realize. chanin may have just taken a shower. her hair looked like it was air-dried. narrator: that meant her body might provide a good, freshly cleaned template for the killer's dna. if there's any kind of suspicions that someone may have been manually strangled, typically, the medical examiner will take swabs of the neck.

Narrator , Crime , Bedding , All , Johnston , Wash , Motivations , Wash-machine , Staining , Chanin-starbuck , Investigators , Death

Forensic Files II

either she didn't die at or about that time, or she didn't send those texts -- either, very important for detectives. narrator: and also important for the two chief suspects, tom walker and john kenlein. they both had solid alibis for 9:18 on the morning in question and were ultimately cleared of any involvement. but one possible suspect did not have an alibi for that timeframe. and that was chanin's ex-husband, clay starbuck. it is definitely making clay starbuck look like a stronger suspect than ever. narrator: but how to prove it? for that, detectives turn to one of the few lucky breaks they had in a very difficult case. chanin had just gotten out of the shower before this happened. narrator: and if chanin was strangled after she showered, this would be fresh dna almost certainly deposited on her neck

Narrator , Detectives , Tom-walker , Suspects , Alibis , Texts , John-kenlein , Question , Either-she-didn-t-die , 18 , Two , 9

Forensic Files II

martino: it was the light-bulb moment. it brought back thousands of pictures and images and screenshots. scotti: there was -- several searches had been done regarding colchicine. one talked about the cardiac impact of colchicine. another talked about how you treat people who have been poisoned by colchicine. narrator: by this time, the unknown female dna found with the bottle of colchicine in adam's car was matched to kaity conley. in june of 2016, she was charged with second-degree murder. at trial, prosecutors argued that she had planned mary yoder's murder for months. this is a well-planned-out, cold, calculated thing. lisi: i think initially what her intent was -- "i'm going to kill mary yoder. that'll bring adam back to me. i'll get back in his good graces," and, in fact, that's really what happened shortly after the homicide. narrator: prosecutors say kaity was able to buy the colchicine online

Colchicine , Scotti , Thousands , Searches , Pictures , Screenshots , Images , Impact , Martino , One , William-earl-talbott , Dna

Forensic Files II

which was found inside a small cardboard sleeve, and the prescription receipt with the e-mail address. everything was tested for dna, and when those results came back, investigators got yet another shock. you know what is found on that bottle and the cardboard? female dna. narrator: and that dna was not mary yoder's. could the dna reveal who had handled this highly unusual murder weapon? which now throws this case into an entire new direction. ♪

Investigators , Dna , Wasn-t-his , Shock , Everything , Results , Prescription-receipt , Cardboard-sleeve , William-earl-talbott , Bottle , Murder-weapon , Dna-reveal

Forensic Files II

where his dna was found, on a body that was freshly washed, didn't appear to be a casual transfer. this is highly unlikely, especially for that dna to be found in so many important locations. narrator: chanin's family says clay couldn't tolerate her seeing other men. that was the last straw for clay. he was losing any ability to control her. narrator: the evidence appears to indicate that clay snuck into the house while chanin drove the kids to school, something he had done many times before. he's just not even human. he stalked her. and that was horrifying. narrator: but this time, he planned to kill her. he hid himself and waited for her to return home. she took a shower. as she came out, he put her in a choke hold and strangled her to death,

Narrator , Dna , Body , Family , Chanin , It-didn-t , Transfer , Clay-couldn-t , Locations , Evidence , House , Clay

Forensic Files II

at the time of her murder. because dna technology over the years has gotten more sensitive, we can now develop dna profiles from just a few skin cells. so, six or seven cells, we can get a dna profile. narrator: using a process called y-str dna, which targets the y chromosome confined to males, analysts lifted a dna profile from chanin's neck and face. the profile matched the "y" profile for clay starbuck and any of his male children. narrator: two of the starbucks' children were adult males, and both had solid alibis for the time of the murder. that left only one person -- clay starbuck. the dna profile that we got left little doubt in our mind that it was clay starbuck. narrator: but clay had an explanation for his dna. he used to live in the house. of course his dna would be there. analysts disagreed.

Narrator , Murder , Dna-profile , Cells , Skin-cells , Dna-profiles , Dna-technology , Using-a-process-called-y-str-dna , Six , Seven , Chanin-starbuck , Analysts