It's a terrifying feeling who's next, what are we dealing with. I mean, it's always urgent when you have a serial killer, but now you feel like you're up against the clock because more people are going to die in a very specific, very short time frame. The I'm Scott Weinberger,

investigative journalist and former deputy sheriff.

I'm Anasiga Nikolazi,

former New York City homicide prosecutor

and host of investigation discoveries true conviction.

And this is Anatomy of Murph.

Today's case, like so many homicides, is the story of betrayal, not of a spouse or a lover, but a betrayal of the public trust.

In Coffman County, Texas, the 2013 targeting of two prominent lawyers that claimed three lives

was not just an attack on public servants. It was an attack on the justice system itself

and an attempt to undermine the promise that investigators and prosecutors

conserve their community without the threat of reprisal.

Which is why this case proved to be about even more than murder. Because using violence

to intimidate or disrupt the functioning of civil society, there's a name for that. It's called terrorism.

With us to talk about this extraordinary case is Bill Worski, who is currently the first assistant

district attorney in Collin County, Texas, a neighboring county just north of the Dallas-Fort Worth

metro area.

I started in the DA's office back in the early 90s in Dallas County and worked my way up to the ranks,

tried quite a few murders and capital murders.

And ultimately when I left, I was assigned to the homicide unit, helping police officers

investigate crime and following it through to the courtroom.

Back in 2013, Bill had left the DA's office

and was working in private practice as a defense attorney when he got a call from Kaufman

...