I remember my elementary school got robbed. We had to sit in the auditorium for a while until they led us past the crime scene into our classrooms. I still remember a forensics guy picking up one of those plastic barrel juice boxes with tweezers and thinking about how ridiculous he looked. They ended up stealing some video cameras and stuff (back in the day pricey), but the police believed they had some inside information because they seemed to know exactly where to go.

Pretty much anywhere with windows is vulnerable. Break window, reach through, unlock door. I think that's what those robbers did.