00:00If I was the kidnapper, I would be extremely worried right now.
00:04We could see in the video how they had suited up to try to avoid leaving DNA.
00:08But it looked like he may have had a bite flashlight in his mouth.
00:14I think it's very possible saliva could have been left because of that.
00:19But even if it wasn't, when he took that out of his mouth,
00:23he would have transferred his saliva onto those gloves.
00:26So gloves are great as long as you're not touching your face and touching your mouth.
00:31As soon as he would have taken that out, if he touched a doorknob,
00:35he would then transfer that saliva DNA onto that object.
00:39Our equipment is so sensitive now that you can pick up the tiniest amounts of DNA,
00:46which means you can detect DNA from people who were never even in the house.
00:51We have solved a number of cases where the only DNA evidence that the agency had for that case
00:57was a single or a couple rootless hairs.
01:01So think about that.
01:02We leave our hair everywhere, right?
01:04Even the way he was dressed, it's very possible he could have dropped a hair in Nancy's home.
01:09And if he did that, he will be identified.
01:12If he left any sort of DNA behind, it's just a matter of time.
01:16Will it take hours, days, or weeks?
01:19I don't think it will take too much longer than weeks because of the immense amount of resources
01:25that are being put into this case.
01:26But now knowing that they are struggling with it, that concerns me.
01:31Because if it was a straightforward mixture, meaning if it was Nancy's DNA and a lot of the
01:38suspects' DNA, it's a pretty straightforward deconvolution.
01:42That's what we call it when you are separating out multiple people's profiles.
01:47When it's two and one of those people is known, it's not such a difficult thing to do.
01:53But the fact they're struggling with it tells me it's more likely two or more unknown individuals.
02:00That's much harder because now you don't have a reference sample of one of the people's, right?
02:05They had Nancy's DNA.
02:07So that makes it easier to extract that out.
02:10So it's just a lead, right?
02:12If they can identify these DNA contributors or this DNA contributor, I doubt they would
02:17run out and arrest this person.
02:19You know, this is something that they would then take that, you know, that identification.
02:23They would do a deep dive into that person and their history, and they would do their full
02:29investigation.
02:29Even if they do identify the contributor or contributors of the DNA, it's not automatically
02:36the suspect.
02:37So anyone who leaves their DNA behind at a crime scene will be identified.
02:43It really is just a matter of time.
02:45This isn't a yes or no question.
02:48It's when.
02:49Let's see.
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