Try not to laugh, but tactically, how would CCW help during a targeted mass shooting at an elementary school in California?

California's elementary schools are known to have very open, sprawling designs. Where there are many separate buildings, some bigger, some smaller (think mobile homes). If let's say the impossible were to happen legally, what sort of extra training would needed vs what one would get (law enforcement and armed teachers) in a traditional campus with one large building. via /r/CCW https://ift.tt/2ItFIP7