You know, prosecutors said and police say that you're an angry controlling guy

and not wants his way and becomes violent when he doesn't get it.

If I was a controlling guy, I would not have my two daughters go into college,

driving their own self, having a car, my daughter is studying court and lives through her team.

As he faced me through a thick pain of Texas prison glass,

Ali Ersan still wouldn't admit he had done anything wrong.

Over the years, I've interviewed plenty of criminals, most of them murderers.

Those conversations always make me think about good and evil

and about the false steps that can so quickly take you from one to the other.

There's no question. Most people are basically decent, honest.

But the older I get, the more often I run into outliers.

People who don't seem to have empathy.

People who apparently don't feel remorse.

People who don't look back and wonder, how could I have done that?

People like Ali Ersan.

I had lots of questions for him, not only about the murders of Galeray and Cody,

but also about another homicide in his past.

I'm Josh Manquatz and this is the final episode of Motive for Murder,

a podcast from Dateline.

It would be difficult for investigators to decipher what was driving Ali Ersan.

They thought they had evidence putting Ersan near the scene of Galeray's shooting,

specifically that fateful traffic stop we told you about in the last episode.

...