James Addy

I wish I would have.

It would have made everybody's life a lot easier.

It wasn't just that double O print from the side of the Goodyear tire.

Officers have something more.

what prosecutors call a perfect tire print in the mud just a few feet from Molly's body.

And what conclusion did you draw, if any, about the tire and the cast?

Prosecutors are convinced that this tire track matches Addie's car.

The defense is saying, not so fast.

All right, I'd like to talk to you about this comparison that we just had that states... There is no widely accepted scientific principle behind an examiner looking at one tire and looking at a cast and saying, they look the same to me.

States Exhibit 67.

Could you explain to the jury what they're looking at here?

That is an empty ammo box of .22 caliber.

Prosecutors call a long parade of highway patrol investigators and criminalists, and then they introduce a key item of evidence.

We utilized a cell site simulator, and we were able to locate her phone.

Molly Watson's cell phone was a vital link in the chain of evidence for prosecutors.

Like they say, a deceased person doesn't speak, but it's almost like Molly was speaking from the grave.

Information from her cell phone did tell us that she had driven from her home to this location while she was on the phone with James Addy.

Investigators are pouring over all these text messages between James and Molly.

And what they're hoping to do is reconstruct the events leading up to her killing.

And maybe they'll find even a triggering moment that caused it to happen.