NEWS FLASH.
When there are a lot more guns out there, and only a few states left with no provision to issue concealed carry permits, if you want to do a mass shooting, you’re a lot more likely to succeed long enough to rack up a serious body count if you choose to do it in a gun free zone.
This is so godawfully simple that even madmen and women can figure it out, though it’s still a bit complicated for certain politicians and media pundits.