I don't blame Hollywood for violence anymore than I would blame an inanimate object for violence.
I've been watching violent movies for a long time now, and I own several guns. Yet I was never once influenced by a movie or my guns to go out and commit violence.
The real culprit in shootings like Newtown is mental illness. Not one of these celebrities has addressed this. Not one. Because it's much easier to blame an inanimate object than to accept the reality that treating mental illness is the answer. That and having trained, armed security at our schools.
But I do agree with the sentiment, the day I let a celebrity influence my opinion, is the day pigs fly.