Dr. Katherine Ramsland teaches forensic psychology at DeSales University. She has appeared on more than 200 crime documentaries and magazine shows, is an executive producer of Murder House Flip, and has consulted for CSI, Bones, and The Alienist. The author of more than 1,500 articles and 68 books, including How to Catch a Killer, The Psychology of Death Investigations, and The Mind of a Murderer, she spent five years working with Dennis Rader on his autobiography, Confession of a Serial Killer: The Untold Story of Dennis Rader, The BTK Killer.