He's still not getting it. When the unicorn farts and pussy-flavored rainbow land of zero guns happens in this country (it won't, but still...), people will go on killing as they have done for thousands of years. With zero guns, killing will necessarily happen from an up-close-and-personal distance.
WAMO's position is, "Well, at least they won't be able to do it from a distance."
Up close. Far away. The victim is still fucking dead.
If it's numbers of victims we're concerned about, the Bible is replete with stories in the OT of people wiping out entire cities with swords and bludgeons. The first mass murder in a school in the (now) US was the Brown School Massacre in which 9 students and their teacher were murdered with tomahawks (the hatchet, not the missile) wielded by three Delaware Indian tribesmen.
People kill people. It's an historical fact. People will continue to kill people - even in large numbers - if you take away the weapons they use to accomplish the feat.