They say you can't analyze your own family, I really believe that; I'm thinking he's gonna need to talk to a psychologist about that.

It is possible that if he was tramatized he might have repressed those threatening memories, so if you were to ask him about it, he would answer honestly "no, I have no recollection of anything like that." Tramatic stuff only comes up for people when the mind/body feels it can handle it, there are so many defense mechanisms that protect us from really embarresing, threatening, tramatic stuff. It sounds like something might have happened, but also I'm no psychologist and don't want to assume something either. I hope he would go to a psychologist, I think that would help a lot.

Take care,
-obj