so you are saying there is a correlation between guns-per-capita and gun-deaths-per-capita?

No, I'm (foolishly) responding to an Onion article of all things. The claim is being made that the U.S. is the only place where mass killings with firearms happen. I'm merely stating this isn't true.

Just to clarify, here's the headline (my emphasis):

"‘No Way To Prevent This,’ Says Only Nation Where This Regularly Happens"