District attorney: Thank you for coming on such short notice. Due to new evidence and a close look at the case, I've decided to reopen the investigation into the disappearance of Katherine Marks. Katherine disappeared in 1982, almost 20 years ago and she remains a missing person to this day. Now there are plenty of people who thought they got away with crimes that we're now finding can be solved based on DNA and other forensic evidence. And I'm sure that puts a lot of people on edge right now. I'll take your questions.
Lawyer: Well, what did you believe was going on?
David: Well, it was clear to me that the district attorney was reopening the investigation to further her political career. There wasn't anybody who didn't know about it. You couldn't walk down the street, you couldn't walk past the newspaper stand. It was just, you know, everywhere.
Lawyer: What did you do then?
David: I...intended to fill up my car with clothing and linen and go somewhere and hide and disguise myself. It seemed to me that the problem was being David Marks...so I just wanted not to be David Marks anymore.
(Latin rap music playing)
Malvern: Hey! Do you mind? Can you just hold it down a little bit? You know, it's just very abrasive on my ears. And you don't have to let the door slam like that. You know, I just need a little consideration. What?
Lawyer: So now you're living in Galveston, Texas, and you meet Malvern Bump for the first time. Did you pretend to be mute?
David: Uh, yeah.
Malvern: Yeah well, just be sure and turn the hall light off when you're coming and leaving, 'cause it's on my meter.
Lawyer: Do you think Malvern believed you were a mute?
David: I doubt it.
Lawyer: Do you think he believed you were a woman?
David: Probably not.
Reporter: 18 years ago this lakeside cottage was a weekend retreat for New York real estate heir David Marks and his wife Katherine, a beautiful young medical student. Now according to Westchester County District Attorney Janice Rizzo, it is being considered a possible crime scene. Earlier today, in an exhaustive search, cadaver dogs uncovered a body. Unfortunately for hopeful investigators, it was just the remains of a dead dog. Sources inside the DA's office say that Rizzo's interest in the case was triggered by an unpublished manuscript written by this woman, Deborah Lehrman. Lehrman's novel apparently describes a murder, the details of which are strikingly similar...
Reporter: ...to those surrounding the disappearance of Katie Marks in 1982. Investigators are also interested in talking to David Marks, but at the moment, no one seems to be able to find him.