Tom Fallis

Would all these things, Dr. Johnson, change your thinking about Ms.

Fallis's state of mind?

But when Jenna was questioned by Prosecutor Ben Whitney, she repeated what she and Joel have said all along, that Ashley was fine throughout the party and that Tom was the one who erupted at the end of the night.

She seemed fine.

She just seemed frustrated, maybe embarrassed.

And there are those key witnesses that Justin Joseph spoke to following Ashley's death.

Nick Glover, the next-door neighbor, who said he heard Tom Fallis confess, tells the jury he remembers it all very clearly.

But Tom's parents deny that conversation ever happened.

And others who were right there with Nick that night say they also didn't hear it.

Nick's mother, Kathy Glover, then tells the jury about a 1 a.m.

phone call she got from neighbor Chelsea Arrigo.

But her story is undercut when Chelsea Arrigo herself takes the stand and says she doesn't even remember the call.

All I remember was hearing some arguing, but that's it.

I do not.

She admits that she was intoxicated that night and fails to corroborate any of the significant statements that investigators say she gave after the shooting.

Still, Weld County Sheriff's Deputy Chris Graves also says he overheard Tom confess to killing Ashley.

But his reliability as a witness is also put in doubt when he admits that he didn't notify his superiors until two years after the shooting, after the case was reopened.

Is that something you feel like you should have done?

The forensic testimony from the night of the shooting is crucial.

The state's expert, Dan Gillum, who spent 400 hours examining the case, explains to the jury where Ashley's head had to have been when the fatal shot went off.