Today I was on campus, in the library on the fifth floor doing research. I received a mass text from my university (they have an emergency texting system to alert students of events on campus). Anyway, the text read that there was a gunman on campus and that all on-campus buildings were going into lockdown. They advised everyone to remain indoors.
All of the sudden one of the library faculty came into the area I was in and said that the entire campus was going into a lockdown, but they were evacuating the library. She didn't elaborate further. We all thought this was strange, because the text had said to remain indoors. On my way down the stairs, I got a text from my girlfriend saying that there was a bomb threat on the library. Needless to say, at this moment I began sprinting down the stairs.
Once outside, I heard that SWAT teams had arrived and were sweeping the building. About ten minutes after getting out, I watched a side door burst open and several people come running out, among them a couple holding hands and racing away from the building.
At this point I ran to another building (someone let me in) and started texting my girlfriend, who was in a different building that was on lockdown. We each waited inside for about an hour before deciding to meet and go to the car, and then we left campus.
Later on the news we saw that police arrested someone, but they still don't know whether he's the actual suspect or if the entire thing was a prank. Nevertheless, I thought it was pretty scary.