I don't know why you feel like it's your responsiblity to do all that. Talk to him as much as you can, but continue to be supportive. He needs professional help, try to steer him in that direction and he should probably consider doing things like getting red meat, cigaretts, alchol and other acid forming habits out of his diets which cause anger and imbalance. Don't abandon him. He might be a bastard, but he's still your friend. Friends like that need support. (I'm a woman, btw, I'm just thinking about my female friends who went crazy and needed support and are okay now) Also, the girl could have gotten away, unless she was chained to the bed or something.