I think what he went through as a child was very heavy. He never got over his mother leaving his father, and following her mother to Florida, to an area that was very different, and losing his father. When he was seven years old, this was a very sensitive boy, who was wide-eyed and trusting, and not knowing how to protect himself at all.
As heard in the "Mickey Rourke" installment of The Dark Side of Fame with Piers Morgan, broadcast October 8, 2008.