I don't really remember that much of the episode, but the song got stuck in my head, its a very calm piece, that is played at the end of the episode. From what i remember, when caine spoke to the culprit and put him under arrest, he told him that the person he killed was actually innocent and the culprit was shocked by that fact and committed suicide in his cellblock. Any1 knows which episode i m talking about? I'd even be thankful for any hints.^^