Sandusky speaks out from behind prison walls

WAYNESBURG, Pa. (CNN) -- Jerry Sandusky will probably be incarcerated for the rest of his life for child sex abuse convictions, but the former Penn State assistant football coach is making sure he has his say outside the prison walls.

Documentary filmmaker John Ziegler interviewed Sandusky, 68, for a project he calls "The Framing of Joe Paterno." On Monday, NBC's "Today" show aired a portion of a phone conversation between the two men.

In the broadcast excerpts, Sandusky questioned the credibility of prosecution witness Mike McQueary, another former Penn State assistant coach, who testified that he walked in on Sandusky raping a child in the showers at a school facility.

"I think there's a lot of things that transpired. I think these investigators, the way they went about business, you know, his story changed a lot. I think he said some things, and then it escalated on him," Sandusky said. "I don't understand how anybody would have walked into that locker room from where he was and heard sounds associated that was sex going on. (laughter) You know, like he said that could've been, I mean, there was ... that would have been the last thing I would have thought about. I would've thought maybe fooling around or something like that. (laughter)"

Sandusky also discussed what Joe Paterno, the legendary Penn State head coach who was forced out as a result of the scandal, knew -- or didn't know.

"If he absolutely thought I was (a pedophile), I'd say no. If he had a suspicion, I don't know the answer to that," Sandusky said.