Perhaps it could be proven thru an autopsy if the kid was unconscious or not.
I believe in the eyes of the pharmacist he was dead, and his adrenaline took over.
Heck, the guy had a gun pointed at him. How do you want the guy to act?
Good for him. The kid chances of survival would've been very little and perhaps a burden for his family to care for him for the rest of his life.
Unfortunate thing that this happened, but hey, you create your own luck by putting yourself in that situation in the first place...