This is right out of the movie “Minority Report.” This guy is guilty of “Pre-Crime.” He has potentially dangerous things.
A lot of Americans have a garage full of potentially dangerous things: hammers, SkilSaws, chain saws, chisels, axes, splitting mauls, picks, shovels, box cutters, lawnmower blades(as used quite effectively by Karl Childers in “Sling Blade”)...the list is endless.
True... it is a liberal school. It is possible a girlfriend took offense at him not being woke enough to be vegan and being into hunting and shooting and turned him in to get back at him for being mean to deer.
Drawing of the building with entrances marked could just be directions for a freshman.
On the other hand, his “ accomplice” could be an FBI provocateur.