wonder if they were just wearing lap straps and got thrown about
Possibility, had a good friend who flew into the side of a hill at night. Very benign type of crash, in that the aircraft received very little damage and would normally be considered a good force landing, if it hadn't been entirely accidental. Not wearing the shoulder strap, only the lap, hit his head on the instrument panel during the deacceleration. Accident happened at 0100 and found at 0700, body still warm. Bled to death.