Inside the Mind of BTKFrom the New York Times Best Selling Author John Douglas Comes a Story of True Crime That Reads Like Fiction Inside the Mind of BTK tells the incredible true story of how FBI profiler John Douglas tracked and participated in the hunt for one of the most notorious serial killers in U. S. history. For 31 years a man who called himself BTK (Bind, Torture, Kill) terrorized the city of Wichita, Kansas, sexually assaulting and strangling a series of