I am not second guessing ,but the perp had a big wide blue jean colored target that with one shot would have diffused her fighting ability. That being said, I bet there was NO victims present, just people of varying degrees of guilty. But fatally shooting one is a ghetto lottery win for at least one of the involved families...........
The cop did the right thing and placed his rounds well. Shooting to a non-lethal area is never a good idea when shooting is required. Regardless of what the story is that prompted the much larger girl to attempt to murder the girl in pink in the presence of LEO's, it very likely was trivial. These people often need nearly no reason to kill each other, so if it is any consolation to you, the girl in pink may be dead soon if she can't move in with relatives out of state.