Episode 604, "Compromising Positions" Tomorrow 8|7c
SEASON 5, EPISODE 509 - The BAU team races to help Hotchner find The Reaper and save his family before it's too late,. C. Thomas Howell ("The Outsiders") returns as the Reaper. D.B. Sweeney ("Jericho") also returns as US Marshall Kassmeyer.