Dr. Katherine Ramsland, an esteemed figure in the field of forensic psychology and author of the autobiography on Dennis Rader, the infamous BTK Killer, recently joined host Tony Brueski on the popular podcast "Hidden Killers." Ramsland provided an unprecedented window into her years of correspondence with Rader, giving audiences a peek into the mind of one of the most notorious serial killers alive today.    Ramsland spent years corresponding with Rader, building a unique understanding of his motives and tactics. "He didn't get caught, so that... better, but he killed only three months later. It wasn't a very long time to pass... Nothing in the news suggested he had been seen, that they had a suspect," explained Ramsland. Her conversations with Rader gave her a deep understanding of his methods, his mindset, and the chilling indifference with which he approached his terrible deeds.    Ramsland offered an intriguing analysis of Rader's criminal modus operandi. After not getting caught in his early crimes, Rader appeared to grow more confident, targeting victims with a calculated attention to detail and pattern. This behavior resulted in his eventual moniker: BTK, standing for Bind, Torture, Kill.    Ramsland delved into a particular incident where Rader broke into a home with a young woman and her brother. Despite shooting the brother, Kevin, in the head, the victim was able to escape and become a witness to Rader's crime. Rader's adaptability and terrifying perseverance became apparent. "Now Raiders [Rader] realizing, oh my God, now we have a witness. And I have very little time, but still he stayed," recounted Ramsland.    She also shared Rader's modus operandi of 'cubing.' "On each side is an identity. So, Boy Scout, volunteer, good husband, serial killer, thief, good father, church president," Ramsland explained. "He could turn whatever side he needed, depending on the circumstances, and flip to another one if needed." This allowed Rader to live a seemingly normal life while leading a horrifying parallel existence.    Brueski asked Ramsland about any suspicions Rader's family might have had. Ramsland shared that Rader was at times afraid that his wife might be onto him, but she noted that it is not common for family members to suspect their loved ones of being serial killers. Rader's double life continued, largely unexamined by those closest to him.    When asked if Rader had conditioned his family to aid in his deception, Ramsland noted that it wasn't just family but friends and co-workers too who were manipulated by Rader's dual persona. She added that people living a double life, whether they're serial killers or merely unfaithful spouses, are "actively deceiving people on a regular basis."    The chilling conversation with Dr. Ramsland offered rare insights into the mind of a serial killer and the complexities surrounding their perceived normalcy. The five-part series promises to delve deeper into these chilling narratives, presenting listeners with a unique exploration of the darkest corners of human psychology. Want to listen to ALL of our podcasts AD-FREE? Subscribe through APPLE PODCASTS, and try it for three days free: https://tinyurl.com/ycw626tj Follow Our Other Cases: https://www.truecrimetodaypod.com The latest on Catching the Long Island Serial Killer, Chad & Lori Daybell, The Murder of Ana Walshe, Alex Murdaugh, Bryan Kohberger, Lucy Letby, Kouri Richins, Justice for Harmony Montgomery, The Murder of Stephen Smith, The Murder of Madeline Kingsbury, and much more! Listen at https://www.truecrimetodaypod.com