So if they are in a crowd delivering the perfect heart shot or head shot becomes much easier? Or hitting them multiple times to cause lethal exsanguination?
It becomes MORE difficult because you can't see what you are hitting when firing into a mass of bodies. Shot placement is everything.
(But I get it, people think bullets are magic, I won't keep trying to explain the reality).
We don't know that they were all killed by gunfire. In situations like that people panic. I know that there are other nightclub situations (fire related) where people were trampled trying to get out. So until we have an official notice - we currently only have a count of how many were killed - not how at this point.