Inside the mind of BTK

FBI profiler John Douglas recounts his involvement in the decades-long hunt for BTK, one of America's most notorious serial killers. For over thirty years, BTK terrorized Wichita, Kansas, taunting police with cryptic messages about his vicious crimes. After his capture, BTK was revealed to be Dennis Rader, a seemingly ordinary family man. Douglas provides new insights into Rader's motives and the investigation, drawing from exclusive interviews with the killer and those close to him.