Every episode of 911: Did The Killer Call? opens with three 911 calls, each reporting a distinct murder. All of the callers claim innocence. But which of them is a killer hiding in plain sight? Built on the shocking and revelatory recordings of real 911 calls and told through the heart-rending testimony of those closest to the cases, this series shows how homicide investigations often hinge on the very first call received by emergency responders.
