When he came in, he was worrying when those green army fatigue jackets.

He had two handguns, then he had two sawdoth shotguns, two shoulder holsters, 50 rounds

of shotgun ammunition, and about 150 rounds of 9mm and 38 caliber ammunition.

I'm Scott Weinberger, investigative journalist and former deputy sheriff.

I'm Anna Sige Nikolasi, former New York City homicide prosecutor and host of investigation

discoveries, true conviction.

And this is Anatomy of Murr.

You know, so many true crime cases that are profiled in the media are really all about

the who done it.

And it's really interesting to me because I do think there's this misnomer that that

is where or maybe the only place where the excitement factor lies.

When looking at cases once you'll uncover who committed the crime, the next natural

question becomes the why.

And as we've seen, the answers are not easy to predict.

Was it for money, was it for love or revenge, or was it just for the thrill of the kill?

So today's episode is still a mystery, but a different type.

Today we're going to be really honing in on the why done it.

So this case we interviewed Scott Davis and back in 2001, he was the lieutenant commander

of the Special Investigations Division of the Elgin Police Department.

Elgin is about 30 miles northwest of the Chicago City of Limits.

We're going to Saturday, April 14, 2001.

It's late at night, actually just a bit past midnight.

...