According to your link, it's not even monthly....

Shots were fired outside Thornton Academy, coming from two separate cars shooting at each other. It was unsure if they were students or had any connection to the school. No known injuries are reported, and the suspects immediately fled off. A school bus was also careened by one of the two evading cars, with no reported injuries as of Feb. 10.[705]

Not a school shooting....nor by students...but its for some reason there...in the list. That entire list is basically shit like that.

So it's pretty damn rare, but you can't be bothered to even read your own sources, so you'll continue to stick your fingers in your ears and act like facts don't exist.