“I think Drew Peterson had everything to do with the disappearance of Stacy, whether it was because she ran away or because he harmed her. I think he is a sociopath," Derek says during a taped interview. He gives his impressions of the former sergeant. "He was there to talk about his past, his triumphs, how great of a cop he was, how great a husband he was. When people call him a monster in the media, I think Drew Peterson actually likes it. Any type of celebrity is fine by him, as long as you don’t call him a liar. He doesn’t mind being the villain, as long as he’s the famous villain.” 

Derek joins Dr. Phil and Drew in the studio. “Did you come away with a feeling, a conclusion, about what you think happened in this case?” Dr. Phil asks.

“I haven’t reached a final conclusion. I’m actually still investigating. His interviews with me did not make him look particularly good,” Derek replies.

“Why did they not make him look good?” Dr. Phil inquires.

“One of the things he said to me — he boasted about it — was, ‘I’m pretty good at the con,’ and that came from his police days.”

Dr. Phil faces Drew. “Did you say that?” he asks.

“I don’t remember saying that,” Drew says. “When I was working undercover, I had a pretty good ability to con people into believing I was something other than what I was.”

“Can you con people?” Dr. Phil asks.

“I believe, yes," Drew answers.

“Are you conning the police now?” Dr. Phil inquires.