kathy carpenter (on phone): no. no, i can't. then, finally understanding, the dispatcher told kathy, pull over, wait for the first responders. dispatcher: i want you to pull over and put your flashers on. kathy carpenter (on phone): ok. when the police arrived, they-- i stepped out of the vehicle. i think i was going into shock, hyperventilating. keith morrison: dashcam video shows a distraught kathy as she was taken to the hospital. and sheriff's deputies arrived on buttermilk mountain to look in that room and confront a mystery. that house in that room in particular has this story to tell, and are we going to be able to figure out what that story is? keith morrison: coming up. she had died from blunt force trauma to the head, and it appeared she had had several blows to the head. any defensive wounds? no. so this appeared to come out of the blue for her? it did appear to be, yes, a premeditated crime that occurred while she was sleeping. keith morrison: more than one suspect and maybe more than one killer. hard to do that alone