I hope you're not thinking that we ban these weapons that mass killings will go away or be greatly reduced. If so you're in for some real disappointment.
I'm not saying this is what happened but how many of the "mass" shootings are gang/drug turf wars?
Yes, because online is the only place the demented people can get weapons. Crazy gonna crazy.
So you're concerned about how gruesome the wound is? Dead is dead.