He was in straight/phoenix for 18 months. For the past two weeks that is all he has talked about, thought about, and relived over and over and over again. He just couldnt live with it anymore. He couldnt live with what he saw, did and felt there. He couldnt live with the things he did and the things that he didnt prevent when he was there. He couldnt live with the guilt of being let out (he graduated) and not going back and rescuing the people who were still there. He lost his identity. He is a great guy, very moral and extremely intellegint, but what he saw and did was immoral. This was just to much of burden for him.