So let me get this straight, if two children get killed at school by a revolver it doesn't matter? If it does matter, using the same logic, if other weaponry is outlawed, (confiscation would be the only means) and revolver becomes the weapon of choice, should they be outlawed? I like how you just passed by the description of the mass killings being in close quarters to evade the semi-auto pistol question.
Most mass shootings take place in gun free zones, is there a correlation? Is it possible gun free zones should be re-evaluated?