Dennis Rader—self-proclaimed the “BTK Killer”—is a serial killer responsible for ten murders in Wichita, Kansas from 1974 to 1991. Rader’s childhood seemed normal, and he lived a relatively average life as an adult. He blended into his community as a government employee, church leader, and Boy Scout troop leader. This seemingly picturesque life allowed him to execute his killings without initial suspicion. He murdered various people through selection, stalking, and finally killing them in their homes. His last known murder was in 1991, and he seemed to cease killing afterward to focus on his family and career. In 2004, he resurfaced and started sending clues and letters to the police. Eventually, a computer disk he sent revealed metadata that