but it couldn t have come from the youngest, marshall, who learned in the process that he was not clay s biological son, was conceived during a relationship chanin had after their first divorce. murder, as we say, exposes all kinds of secrets. the evidence they have is trace dna. it s like i go up to you and touch you on the hand. it s that small. reporter: but there is starbuck dna. yeah. reporter: and there are some who have said, if it s not him, was it one of you guys. there s starbuck dna in the starbuck house. kind of funny how that works. we all lived there. my dad lived there months before this happened. his hair everywhere, his sweat. the kids coming over back and forth from our house to her house. reporter: according to the starbuck children, their father was essentially a victim of a kind of marital profiling. a suspect simply because husbands and ex-husbands of murder victims are always suspects.
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reporter: jealous, resentful and on the morning of december 1st luring chanin out of her house with a phony story about a broken-down car. remember clay texted chanin, asked her to take the kids to school, then shut off his phone to avoid detection, or so said the prosecutor. laying a trap. taking the children out of the house, entering the house, waiting for ms. starbuck to return. reporter: they played that snippet of a 911 call that the prosecution said confirmed the time of the attack. 911, what are you reporting? reporter: then an expert told the jury about the dna they found on chanin s neck. is this match that you described an exact match to clay starbuck and the male bloodline of his family? yes. reporter: the dna had to be clay s.
relationships. most can be confirmed that they were only sexual in nature. chanin s private life was about to become very public. we were able to identify at least ten that she was meeting with electronically, most of which she had met one-on-one. a string of strangers, now potential suspects.
i have no way of knowing what chanin told them, but i would hope that they would follow the evidence. i would hope that they wouldn t chase somebody down over a comment made off the cuff. reporter: and those were secondhand stories about clay the jury never heard anyway. as for his alibi that morning in the surveillance video, it was nothing said clay. of course the camera didn t show him on that street, he never told the cops that s where he walked and they never asked. they didn t ask you where you went. no. reporter: they say you told them. i did hear that. reporter: are you saying their memories are bad? or something, that they re lying or what? many statements in this that have not been true from law enforcement standpoint. reporter: and speaking of alibi, clay said he doesn t believe the time of that 911 call means anything at all. it is so short, you can t