In the second half of this two-part episode, retired FBI agent and criminal profiler Candice DeLong speaks with Dr. Katherine Ramsland, a forensic psychologist and one of the world’s foremost experts on serial killers. In her book, Confession of a Serial Killer: The Untold Story of Dennis Rader, the BTK Killer, Katherine details her years-long correspondence with Rader and what she learned about his twisted psyche. Candice and Katherine discuss the motivations behind Rader’s crimes and how his dark fantasies escalated to murder. Confession of a Serial Killer is available at https://www.amazon.com/Confession-Serial-Killer-Untold-Dennis/dp/1611688418.Need more Killer Psyche? With Wondery+, enjoy exclusive episodes, early access to new ones, and they’re always ad-free. Start your free trial in the Wondery App or visit wondery.app.link/TI5l5KzpDLb now.See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.