BTK Killer: Dennis Radar- This terrifying “sleeper” serial killing intermittently between 1974 – 1991. Victims: at least 10, under which he created the persona of Bind Torture Kill. Radar during 1974 through to 2004, would taunt the authorities, though the press; with threats of letters, drawings, and dolls. Radar, like Gacy; hid behind his family man, community image. It is truly very chilling to watch him talk about his killings during his court testimonies. No remorse… BTK is now 77 years old and serving 10 consecutive life sentences in El Dorado Correctional Facility. Size 9”x12”, in Ink and some colored pencil.