. >> the jeep belonged to richard and karla van dusen. karla's cell phone was found on the front seat. just a half mile away, neighbors called police to report two dead bodies on the road outside their home. they were identified as richard and karla van dusen. >> richard was laying facedown in the dirt of the driveway, and karla was laying on her side. both had been shot in the head. and we later learned through an autopsy that karla had also been stabbed. >> richard and karla had been married for three years. they had three grown children from previous marriages. >> my son, he said, "they're dead." and i said "did they have an accident?" and i said "are you sure?" several times, i asked him, "are you sure?" and then he told me that they had been found and that they had been murdered. and i just -- i don't even remember after that. >> investigators had two crime scenes, the jeep and the area where the bodies were found. based on the evidence and the location of the bodies, investigators think that the killer was someone the van dusens knew