What's the crime? That he replied to an EIGHTEEN YEAR OLD, in IMs?
The guy went after interns. Everybody knew it. Does that not bother you at all?
This might well have been a setup, but do you suppose it was just a lucky coincidence that he happened to have some history with this sort of thing? I think not. They knew he was into teenage boys, and they took advantage of it. That's sick and twisted, but so is being into teenage boys.