Leon was a brilliant but troubled mind, struggling to keep control over the disparate aspects of his personality. His inner turmoil caused him to suffer from dissociative identity disorder. He would often become overwhelmed by the conflicting thoughts, feelings, and identities constantly battling for control within his mind. "I don't know even who I am any more" Leon said, trying to make sense of the jumbled thoughts and feelings inside his mind. "I just want to be one person, not a dozen."