I think he would've had a better chance of not being a veggie if he had his seatbelt on.
Example: My aunt and uncle just got into a wreck yesterday morning in a rental trailblazer. Driving on the interstae at 5am in the dark, come upon a 5x3x1 foot boulder in the road. Hit it with the right front wheel, rolled car 6-7 times. Both had seatbelts on, aunt came out unharmed just a little bruised. Uncle ruptured a disk in his back but its not bad.
Example: My aunt and uncle just got into a wreck yesterday morning in a rental trailblazer. Driving on the interstae at 5am in the dark, come upon a 5x3x1 foot boulder in the road. Hit it with the right front wheel, rolled car 6-7 times. Both had seatbelts on, aunt came out unharmed just a little bruised. Uncle ruptured a disk in his back but its not bad.