Dr. Katherine Ramsland teaches forensic psychology and criminology at DeSales University in Pennsylvania. The author of 70 books, she has appeared as an expert on more than 250 crime documentaries, podcasts, and news shows. She was an executive producer of Murder House Flip and Confession of a Serial Killer and consulted for CSI, Bones, and The Alienist.

Tracy Ullman is a documentary producer, director, and writer in New York City. She has produced dozens of non-fiction television programs for Discovery Networks, Oxygen, AETN Networks, and PBS. Her most recent production is a six-part limited documentary series about serial murderer John Wayne Gacy and the new discoveries made in his case for NBC's Peacock streaming service.

For more information or to order books, please visit: https://www.murderbooks.com/Ramsland-Ullman