It's admirable that you are trying to help him, but surely you must realize that you can't. He is very disturbed and needs professional help before he harms himself further or even takes his own life - or someone else's. You will not be betraying him by telling a school counselor or school nurse, and he will thank you for it one day. These issues are not going to go away by themselves, and the sooner he gets help, then the better chance he has for recovery or management of his mental illness. Yes - he is mentally ill and requires immediate help before it's too late. But you already know that - don't you.....