Swans Don't Swim in a Sewer: Solving the Cold Case of the Flint River Killer's Daughter When a serial killer’s daughter is brutally murdered, he asks Sheryl McCollum to team up to catch her killer. A serial killer turns crime victim when his own daughter is the one viciously murdered. He asks law enforcement for help, but the case goes cold. Then he turns to Sheryl McCollum and the Cold Case Investigative Research Institute. There’s never been a case like this in history. Sheryl and her team of experts get involved, they hatch a plan. What happens when Sheryl uses a serial killer as bait to catch a killer? Available at Amazon, Barnes & Noble, and Simon and Schuster.