university/college campus buildings are notoriously easy to get into. Doors unlocked pretty much 24 hours, Libraries open late, etc. I mean hell I’d still go to my University library and student lounge areas well after I graduated late at night to do work because the wifi was excellent and…no one bothered you. One night I even passed out and fell asleep in the lounge and no one woke me up. Plus Campus Police are like a middle ground between security guards and actual cops.

So a dude rolling in to one of the buildings from like 200+ yards away to set up a shot with a rifle doesn’t surprise me at all. It was a pretty good shot too if you saw the video so they had time. Probably had a decent amount of time to slip out also.