Costas came because something unresolved had lodged itself in him, something he couldn't shake until he faced the woman he had spent a decade hunting.

I don't know that I felt guilty, because I was doing my job, but I didn't realize the ripple effects that it h- would have, and that's what was eye-opening to me.

The human element part of it kind of took me off guard.

Two people who once stood on opposite sides of a manhunt found themselves in a booth sharing something much less dramatic and far more human: recognition.

We exchanged phone numbers, and she said, "You can call me anytime." And I told her if she ever needed anything from me, that she could call me.

I just said, "I really appreciate this." And it's weird because I never did anything like that before, and I never did anything like that after, that I wanted to talk to a defendant of any sort of case that I ever worked.

And the clock was ticking.

The show was in production, and I was trying to think of everything possible that we could do to see if there was any contact.

So when I started looking at it, we were able to determine that she had three relatives that we were able to identify.

One was Leona Julius, who was an elderly woman, and was Margo's aunt.

The other one was Tim White, who was the oldest of the family, and he was Margo's half-brother.

And then she had a full-blooded brother, Tommy Freshwater.

Costas started thinking less like a cop and more like a con man.

I thought about when before Margaux went to Memphis to try to get Al Schlereth out of jail, she had a baby in August of 1966.