Dr. Bethany Marshall

Well, it tells me, first of all, that he has a preoccupation with Nancy Guthrie, as I've discussed with you before.

This is somebody who is fascinated by her for some reason.

Either he's targeted her before, he knows he's going to target her.

Maybe he just wants her money.

Well, that's what I mean, like a big payday of some sort.

And Nancy, there's something very odd about his body language.

I cannot quite put my finger on it.

It's as if he's nonchalant in some strange way.

And it makes me as interested in what we're not seeing as what we're seeing.

What are we not seeing?

We're not seeing how he's casing the rest of the house.

We're not seeing what he's doing with that backpack.

Does he have it on and then he sets it in the dirt and then he puts it back on again, sets it in the dirt?

Is he sending it down, opening it, closing it?

What does that tell us about evidence?

What is in that backpack?

What about the sloppy gun that is just hanging over his crotch?

What does he actually think he is going to do with that gun?

Obviously, there is nothing but an 84-year-old woman

in that house?