chunk: Karl returns to Linda's house, but seems undecided about whether to enter. When confronted, a drunk Doyle asks what Karl is doing with the lawnmower blade he had sharpened and fashioned into a weapon. Karl replies, "I aim to kill you with it." Karl asks how to reach the police by phone, Doyle says Karl should dial 911 and request "an ambulance, or a 'hearst'". Karl kills Doyle with two chopping blows of the lawnmower blade to the head. Karl then calls the police to turn himself in, and requests a "hearst" be sent for Doyle. He eats biscuits while waiting for the police.
  Returned to the state hospital, he seems a different person than he was during his previous incarceration, having learned the value of sacrificing one's self to save others. He silences a sexual predator (played by J. T. Walsh) who had previously forced him to listen to tales of his horrible deeds.