Killer Cases season 4 episode 9
Episode title: The Bicycle Killer
When devoted single mom Becky Bliefnick fails to pick up her boys from school in Quincy, IL, her father went to check on her and found her dead in the bathroom. Detectives learn she was going through a contentious divorce and dating someone new; they find a major clue in an unlikely place–on an episode of the game show "Family Feud."
