daughter came over here and said that somebody shot her parents. >> when police got there, they found diane johnson shot to death in her bed, apparently, while she was still sleeping. alan johnson was also dead on the floor next to the bed. >> the shower was still going, and i could see directly into the shower, and there was a bullet hole that was straight on, chest high, straight into the tile. >> the murder weapon, a .264-caliber rifle, was still on the floor. >> it was probably one of the most violent crime scenes that i had ever seen. >> sarah, the couple's 16-year-old daughter, said she was asleep in her bedroom down the hall when she heard the first shot. >> she immediately got up, went through her parents' bedroom door, called her mother's name, heard a second gunshot and then fled the residence out the front door to a neighbor's house. >> unfortunately, sarah didn't see the assailant. at the foot of the victims' bed, investigators found two knives. >> that certainly was a mystery to us. we have these two homicides, and why are these knives placed in the manner that they are and what does t