Before he became the nightmare of Wichita, Kansas – the sadistic serial killer who taunted police with letters signed “BTK” – Dennis Rader was just a quiet, unassuming boy growing up in middle America. In this chilling episode, we go back to the beginning. This is the origin story of one of America’s most infamous serial killers – the story of how Dennis Rader spent decades carefully constructing the perfect mask… This is the making of BTK. Follow Colin as he travels state to state (and even country to country!) investigating claims of extreme paranormal activity and visiting famous haunted locations on The Paranormal Files Official Channel: https://www.youtube.com/c/TheParanormalFilesOfficialChannel - (c) BLOOD IN THE SINK PRODUCTIONS 2025 Learn more about your ad choices. Visit megaphone.fm/adchoices