DANGER- ROBBERY & VIOLENCE- IMPORTANT MESSAGE

Perhaps so,e of the things you mention are part of the cause, I think that that thing that “allowed” it to happen is a lack of adequate law emforcement. I think we define the term “allowed” differently.

There shouldn't have to be "law enforcement" in classrooms. There are too many firearms in the hands of too many unstable people. A problem most countries don't have.