I can't imagine what you are going through. From my own experience, this is beyond your control now. In order to help him, you have to protect yourself FROM him. He is danger to himself and now you. I realize this is harsh, but the only way to save him is to protect yourself so you can be there for him but ONLY after he commits to getting help. You've already lost him. HE needs to decide what he wants his life to be. You cannot do it for him.