kay was alone at his house in payson. >> 911, what's the address of your emergency? >> it was evening when the call came in. >> i -- i have help on the way but i just need to get some information. are you sure that he's dead? >> darla was on her way home. her cell phone chirped. it was a neighbor. >> he says, something's terrible happened up payson canyon, i think it's at your house. >> darla's mind flashed to kay and his guns. >> and i thought, oh my gosh, he's probably shot somebody, an invader or something. >> she phoned a family friend. >> i said, something's going on, i'm alone, i need to be with somebody, can you come down and be with me? >> chris rushed to meet darla at the foot of the canyon. police had blocked off the phone that led to kay and darla's house. now darla and chris thought exactly the same thing. >> kay probably shot someone. >>> coming up. roger mortensen makes an agonizing discovery. be and stumbles directly into a murder scene. >> after we were tied up, they to go out and discover.. at chevy, we're committed to getting you there with confiden