911: Did the Killer Call? 1x1

When a man turns up dead in a house fire, his wife tells police he was suicidal, but the truth is even more shocking. After the brutal binding, torture and murder of a woman in her home, her ex-husband calls 911, but police suspect he is the killer. Also, a man calls 911 while still on the phone with his girlfriend, after she screams and drops the phone.