dennis lynn rader (born march 9, 1945), also known as btk (an abbreviation he gave himself for bind, torture, kill ), is an american serial killer who murdered at least ten people in wichita and park city, kansas, between 1974 and 1991. Although rader occasionally killed or attempted to kill men and children, he typically targeted women. these selfies — featured in oxygen's snapped: Notorious btk killer — gave investigators crucial insight into how family man and church leader dennis rader transformed into the. He was known as a member and the president of christ lutheran church, a local cub scouts leader, a security expert who installed security alarms for homeowners concerned about the btk killings.
