day after Thanksgiving in 1998, a police officer responded to a 9-1-1 call at an apartment in a Florida beach town. But the 9-1-1 call had been vague, so the officer did not know if he was responding to an accident, a break-in, or something else. He knocked on the front door, and nobody answered. He tried the doorknob, but it was locked. So the officer walked around the outside of the apartment, and he found an open window that led into the kitchen. The officer climbed in the window, and then made his way through the apartment – everything looked totally normal. Then he came to a door that was slightly cracked open...