Known as the BTK Killer--which stands for "bind, torture, and kill"--Dennis Rader terrorized the Witchita, Kansas area from the 1970s to the 1990s.Dennis Rader committed his first murders in 1974, strangling four members of the Otero family in their home. Later that year he began seeking fame for his killings, writing letters and reporting his crimes. His final crime was in 1991, but he resurfaced in 2004 and again sought media attention. This eventually led to his arrest. He pled guilty and was ordered to serve 10