towel. one of the two before coming back to the table and before the test was done. >> reporter: so odd thing. anyway, police scoured the place. didn't see any murder weapon lying around. and they were about ready to take dave's body off to the morgue when some instinct told the lead detective to look here. he cracked open the doors of the grandfather clock in the dining room, looked down inside, and there it was. >> this is more than likely the murder weapon. >> reporter: a ruger six shot revolver. surely no prowler would have dropped the murder weapon right here in the dining room clock. >> the prowler theory did not make any sense whatsoever with the hidden gun inside the house. >> reporter: so it wasn't long before investigators shifted their focus from prowler to the woman who reported one, jane laut. remember those clothes they