His Organs

What if your parents died when you were five and you had their blood on your hands. Grey Tyler murdered his parents when he was just five and then got sent to his aunt's. When he became of age he ran away never to be seen again. Off the map. Then he popped back up on the charts when his aunt and uncle were murdered. He pleaded moment of insanity because he couldn't remember anything besides standing over their dead bodies. So he gets sent to an asylum. The doctors there are cruel and torture him...to death?