. >> reporter: detective neal mcamis was one the first detectives on the scene.ntered the home through the garage door and saw gary first. >> we could see that there was a deceased male in the hallway of the home.ts were pulled down. what did you make of that? the only thing that -- we could s trying to get away from somebody, that they're grabbing a hold of him. >> reporter: or was the killer rifling his pockets for something? a key, maybe? in gary's office downstairs, the detective saw jan. >> she was on the ground. she was lying face down. was obvious that there was severe trauma to the back of her head. >> reporter: so was this a violent home invasion? more than a half a million dollars worth of valuables in the house for the grabbing, so a botched robbery was a likely scenario. garage, police did find strange marks and scratches on a tornado shelter that was also used as a safe. had -- tried to pry the lock open. there were some marks that -- that were by the -- the lock on the on the door of the tornado shelter. >> they didn't get inside. >> and it did not appe. >> but that would