Deborah Roberts

Did you ask them if they thought there was somebody who could be out to hurt her?

We spoke to the family.

We spoke to her friends.

And everybody kept giving us the name Riley Gall because of their relationship, because they had seen the way that Riley had treated her, the way he had talked to her.

The Knox County Sheriff's Office goes to talk with Riley, and he's distraught.

Riley goes to social media, posting, Rest easy now, sweetheart.

I love you forever and always.

Riley seems devastated, but he doesn't go to the vigil.

That is held for Emma.

You know, he justifies his absence at this vigil as he's just too broken to attend.

Remember, Riley had attempted suicide once, so his friend Alex gets nervous and tells detectives about the night Riley was found in a ditch outside the party.

He showed you his grandfather's gun?

So he's been acting strangely, and then he shows you a gun...

How worried were you about him?

He said he had the gun for protection?

Who did you hear from the friends about what struck them as odd?

There had been a series of events leading up to the homicide.

One particular incident, the alleged kidnapping.

There was another incident the next morning where a person dressed all in black, head to toe, even sunglasses, a hoodie on, face covered, goes to Emma's house, tries to get in, scares her.

Did you think maybe there was some other suspect out there who had been stalking her?