re: The answer to school shootings

I thought that I read this during the week. They have special locks on the door which makes them hard to open, they have a cop or someone on duty with a gun. The point of this, I thought I read that if the gunman were to get through the door the students would all throw, not to kill the shooter but maybe distract him, deter him momentarily or something. I don’t know, at that point he leaves or maybe they can charge? Sounds better than laying on a floor and just getting shot.