FEWER GUNS, more killing. Best comment: "The left uses every tragic killing as an excuse to take guns away from the people who didn't do it."

Second best were the multiple comments by 'RikOShea', who correctly pointed out -- and ably defended -- the obvious correletion/causation conundrum. The problem, of course, is the second half of the 'correlation does not imply causation' argument: it does give you a place to start looking.

That there is more to gun violence than the red/blue divide is obvious, but the divide does give you a place to start looking for and weighing the other (probably cultural) factors that do impact gun violence.