He Watched With A Smile

A boy named Jack killed his abusive father, after being beaten for years, he killed him after escaping his basement, but something strange happened, Jack smiled while he killed his father, he didn't know why, he certainly didn't want to. He learned after his father was dead that he had an alternate personality named "William" who had been the reason his father abused him, and the reason he didn't go crazy from the mental trauma. Jack went to an orphanage and began learning more and more about William, he also learned that his smile warned of when something bad was gonna happen, like he was about to kill someone, or something of that nature. He was eventually adopted by a family, and he then had to learn the way to being "normal", and the way to control Williams murderous intent. The only thing he can do is hope.