First Murders by BTK Killer

Date: January 15, 1974 • Location: Washington, United States

American serial killer Dennis Rader, also known as the "BTK killer", murdered his first four victims.

Dennis Lynn Rader also known by his pseudonym BTK ; is an American serial killer and mass murderer who killed at least ten people in Wichita and Park City, Kansas, between 1974 and 1991. Although he occasionally killed or attempted to kill men and children, Rader typically targeted women. His victims were often attacked in their homes and then bound, sometimes with objects from their homes, and either suffocated with a plastic bag or manually strangled with a ligature.