All the usual suspects spouting all the usual talking points following a widely publicized shooting (what likely would have been a mass murder if not for the presence of a good guy with a gun). Civilian disarmament advocates like The Atlantic editor David Frum rush to dance in the blood further their hoplophobic narratives, frequently beclowning themselves by exhibiting how very little they know about firearms or the plethora of laws already in place to regulate them.
