Princeton was on lock down because somebody saw somebody walking around with a gun! But now the "all clear" has gone out. It was just drunk dumpster-diving townies threatening the Ivy Leaguers with a squirt gun, as usual:
It was four juveniles walking around with a toy gun, that they scored rummaging through all the crap Princetonians leave behind as they rush away for the summer. In other news, Princeton students are corrupting the youth with intoxicants!
Police believe the incident stemmed from a bigger problem of kids from town going on campus and rummaging through dumpsters looking for unused alcohol, which campus security says has been on ongoing problem.
These drunk kids wandering around with a "green toy handgun" and a half-empty bottle of Malibu that they filched from the trash caused the entire campus to be on full lockdown for 90 minutes. The lesson for Princeton students: Don't leave behind anything dangerous that could be used for mischief by your inferiors.