There should be no question about the ammo used.
What kind of ammo was in the magazine, and what kind of ammo was chambered? If it is .223 FMJ, there is almost no way a round could be shot into somebody’s head at 10 feet and not go thru and hit something else directly in line with the trajectory (and probably go thru a wall of a kitchen). Most shooting ranges don’t allow FMJ rounds for AR calibers because of their tendency to penetrate and pass through backstop materials.
And THAT, exactly, is my point!
Thanks.
If we can get that across, he may avoid a murder charge and only have to deal with negligent homicide.