On December 9, 1977, Nancy Fox was found dead in her home partially clothed, lying face down on the bed with her hands and feet bound with nylon stockings.

One of the strongest leads police had was an anonymous man, who later turned out to be Dennis Rader, who called them that morning to report the horrific crime he had committed.

Operator #1: “Dispatcher”
BTK: “Yes. You will find a homicide at 843 South Pershing. Nancy Fox.”
Operator #1: I’m sorry sir I can’t understand you. What is the address?
Operator #2: I believe 843 South Pershing…
BTK: “That is correct”