I don't go by the pictures.
You point a camera at anybody long enough, you are going to get some weird photos you can use in newspapers. Both Bush and Kerry were victims of this process during the election season.
Those anti-Semitic quotes, though, drunk or not, are going to stick hard. So far, he's apologized, not denied them.
Gibson has a history of twitchiness. He has discussed being suicidal at some points in earlier interviews.
That being said, he has done some damn good work in his career, as have other artists with some serious geraniums in their craniums.