David Muir

Jurors in the trial of Clayton Foreman, the man accused of killing that school teacher, Catherine Edwards, are now hearing about this investigation that took nearly 30 years, and all of it now culminating with this cutting-edge DNA testing done by that Texas lab, Othram.

Please have a seat. I was very eager to get to the courtroom. I work at OTHRUM. We'll do the testing, and it will result in the building of a DNA profile to generate new leads in the investigation. It's one thing to solve a case, and it's another to be able to defend how that work was done, allow it to be interrogated openly and critiqued. We want to see at least 50% of the markers.

Please have a seat. I was very eager to get to the courtroom. I work at OTHRUM. We'll do the testing, and it will result in the building of a DNA profile to generate new leads in the investigation. It's one thing to solve a case, and it's another to be able to defend how that work was done, allow it to be interrogated openly and critiqued. We want to see at least 50% of the markers.

And you can see that in actuality, it looks like 87%. So that's far in excess of what is necessary to produce a workable profile.

And you can see that in actuality, it looks like 87%. So that's far in excess of what is necessary to produce a workable profile.

So prosecutors want the jurors now to hear from the woman who can actually detail the connection between that school teacher, Catherine Edwards, and Clayton Foreman. She was married to him.

So prosecutors want the jurors now to hear from the woman who can actually detail the connection between that school teacher, Catherine Edwards, and Clayton Foreman. She was married to him.

And remember, Catherine Edwards and her twin sister were actually bridesmaids at the wedding.

And remember, Catherine Edwards and her twin sister were actually bridesmaids at the wedding.

Yes. She also testified that while she was married to Foreman, she actually discovered something unnerving in his car.

Yes. She also testified that while she was married to Foreman, she actually discovered something unnerving in his car.

I didn't know what he would do. And later, when questioned by the defense, Diana said she never saw the briefcase again. She also recalled an odd conversation that she'd actually had with her ex-husband about Catherine and her twin sister.

I didn't know what he would do. And later, when questioned by the defense, Diana said she never saw the briefcase again. She also recalled an odd conversation that she'd actually had with her ex-husband about Catherine and her twin sister.

After 11 years of marriage, Diana and Foreman divorced, but they continued to stay in touch. And she tells jurors how two years later, in 1995, she actually called her ex-husband after finding out that Catherine had been murdered.

After 11 years of marriage, Diana and Foreman divorced, but they continued to stay in touch. And she tells jurors how two years later, in 1995, she actually called her ex-husband after finding out that Catherine had been murdered.

And there was one more witness jurors would hear from, Paula Ramsey, Foreman's victim from 1981. It had been decades since Paula had even heard the name of the man who assaulted her.

And there was one more witness jurors would hear from, Paula Ramsey, Foreman's victim from 1981. It had been decades since Paula had even heard the name of the man who assaulted her.

And on the other end of the line was Detective Llewellyn.

And on the other end of the line was Detective Llewellyn.

And so suddenly, all these years later, in a courtroom full of strangers, Paula is telling her story about how she was assaulted by Foreman.