so i got out there and sam said, "got some bad news." "kim, brad, and jill have been shot." with that, i just kinda slid down to sitting position. i sat there and cried and couldn't believe it. >> reporter: on lockhart road, the sound of sirensfollowed by flashing lights. a homicide investigation was beginning. and david's friends and former colleagues in the indiana state police would be on the front line. something strange at the crime scene. kim's shoes placed neatly on top of the bronco. what could that mean? that's what police want to asked david camm. coming up. >> never. never. >> you saw the shoes up? when "mystery on lockhart road" continues. y on lockhart road" continues. ♪