I still want to know the answer to this one! My vote, as much as it pains me, is for Emile Hirsch. I like him very much as an actor, so I was dissapointed by Lainey's comments about him

. Here is my reasoning:
1.) In her previous post about Emile, Lainey noted how his ego was growing by the day. This fits with the BI comments about the guy who is so brazen that he carries his stash is his pocket at the airport.
2.) Lainey also noted that the person should know better as they witnessed something tragic (or along those lines). Emile Hirsch was in Lords of Dogtown with Heath Ledger and they remained close. In fact, Emile was at Heath's funeral recently.
3.) Then, the fact that Lainey continues to mention that it's NOT Sean Penn over and over is a clue. Not only did Emile work with Sean Penn in Into the Wild, but his current project is "Milk" starring...Sean Penn. That film is currently filming in New York.
That's my 2 cents.