Susanna Ryan

It's very simple.

It's just what we call a buckle swab.

So it's just a swab from the inside of someone's mouth.

We're collecting the cheek cells.

And so that's a great source of DNA.

We don't have to take blood anymore.

So it's very simple.

Put that swab in, swirl it around, collect it.

And like you said, then you have it.

Whether you actually have to test it or not, that's going to come down the road if you start having unknown profiles.

But absolutely collect it.

I can't tell you the number of cases that I have worked that it's turned out that

not to disparage construction workers, I'm not saying these people are bad people in any way, but I have had a lot of cases where it's been a construction worker, someone that, as Dave Mack said, had legitimate access to the house, but performed a terrible act on a person living there.

And that does have me concerned that perhaps one of these people who

had this access to the house, then locked the door, put something in it so it didn't close completely because they were planning on coming back later that night to kidnap Ms.

Guthrie.

Well, if we're able to locate that vehicle and

We know that Nancy was bleeding, so it's likely we'll be able to find her blood, but what else is gonna be in that vehicle is the suspect's DNA.

Even if they stole this vehicle, for example, it takes a very short amount of time for someone to leave their DNA behind in a vehicle, even if they're trying to avoid that.

I mean, I always think of people,