From the Dr. Phil transcripts:
Of course, Im concerned about Brittanee. That girl is a nice girl. But when I was in the room with four other kids, theyre all with me the whole night, and then all of a sudden my name is mentioned as a person of interest, when there is absolutely no evidence, Peter explains. My family is going through hell right now. People look at me differently walking down the street. You can just imagine how I feel.
(showing he didn't mention others - although there could have been and we just don't know about it)
Yeah, though when he says "...I was in the room with four other kids, they're all with me the whole night..." he could have meant that in the context of 1) he and the four other kids are the ones who occupied/rented that hotel room and HE is the ONLY ONE being named in the media, none of the others specifically, and 2) 'they' (the other kids) are HIS alibi, with him all night...and it could be in the context just as transparently as it is on the surface.
Let me say that I really don't believe he did anything to her. I'm inclined to believe none of the other kids in that room or any of the other kids from NY had anything to do with this - other than the scenario I mentioned of possibly exposing/introducing her to an unsavory sort who would do something to her.
Did someone he met here express a keen interest in her, the hot little blond with no boyfriend in sight, to him in the days before when she was around them? Did the interest go as far as to creep PB out enough, coupled with the possibility of this person hastily leaving the room about the same time Britt did throw red flags up for him to get the hell outta dodge quick-like as soon as the word is out no one can find her? Admitting that might have meant admitting to a whole lot more than just hanging around with scuzzy people here.
Maybe something like this goes back to what we've heard DD say and stick with, along the lines of "he knows more than he's telling." To be fair to him, if he does, that means at least 3-4 other people do too. I'm not positive but I thought all along PB was named so quickly so publicly because either the room was rented in his name, or because the group BD came with or JG named him to JH because he was the only one whose name they knew. Unfortunate for him, but if he has nothing to hide, 'dems da breaks', so they say.