Gregory M. Cooper is founder of the Cold Case Foundation and former head of the FBI's Behavioral Sciences Unit. He has worked as a FBI Profiler, FBI Violent Criminal Apprehension Program Manager, FBI National Academy Instructor in Quantico, Virginia, Chief of Police, expert witness, and international and domestic threat assessment advisor. Cooper's work has been featured in New York Times bestselling books and Netflix documentaries, and he is coauthor of Predators: Who They Are and How to Stop Them.