Pathetic. Absolutely pathetic.

After alerting everyone to stay inside after reports of a gunman, Princeton University's Department of Public Safety has issued an all clear.

CBS station KYW reports that person is now in custody and that he had a toy pistol.

What happened?

Police took four juvenile suspects into custody just before 11:30 a.m. None of the four suspects were students. One had a dark green toy gun in his waistband that school officials said could have been mistaken for a real gun.

The four kids were apparently rummaging through some sort of trash dumpster and told cops that's where they found the toy gun, police sources told NBCNewYork.com. One of the juveniles picked up the fake gun, put it in his belt and started walking away with the other three kids when a woman spotted the gun in his waistband and called police. It's not clear whether or not she was a student.

No shots were fired.

Of course no shots were fired – it was a toy gun. And that there were arrests over the incident is insane, given that there was no threatening behavior by anyone.