Season 10 Episode 22 rewrite where Olivia goes to see O'Halloran instead of Elliot. She sees the evidence O'Halloran found to connect Stuckey to the crimes, and Stuckey knocks her out when she finds O'Halloran's body. Can Elliot save her from the psycho's frenzied plan to cover his tracks? Note: Elliot and Kathy are divorced as they should have been.