Blaine Alexander

Absolutely.

You're thinking optimistically, like, OK, we should have video.

This should help us kind of bring this to a close pretty quickly.

Yes.

So you all start to search the house looking for the footage.

What do you find?

The DVR that connected to the security system.

So, no video at all.

A setback, certainly, but also a clue because that video recording equipment was hidden away in a small closet above the garage.

What does that tell you?

and knew their dogs.

Rebecca said they'd been closed inside the bedroom all day, the same bedroom where the burglary happened.

And when Detective Diebel looked around the bedroom, he thought something else was off.

The police told Rebecca their theory, that the killer wasn't a stranger, but someone who knew the family and the house quite well.

You think you can find your dentist?

I don't think we can, yeah.

Investigators were looking for someone close to the family and someone who had spent a lot of time at the house.

It sounds like his fingerprints are literally all over the crime scene.

Detectives were just a few days into the murder investigation of Dr. Stephen Schwartz when they caught their first big break, a match on some of the fingerprints they'd found at the crime scene.

They belonged to Rebecca's oldest son, 33-year-old Eric Nichols, whose prints were on file because he had previously been arrested for driving with a suspended license.