did you notice when he was asked the questions - "how did you get into the basement", "how did you come to have knowledge of the Ramsey family" - how he paused before answering "no comment". I mean, if he is confessing to this - spill it all, tell us everything. why hedge on those two simple questions?
...because he can't.
On Court TV, they mentioned several questions he was asked that he couldn't answer.