Not-so-vague threats?

I need everyone in Minneapolis to chill. For the next two weeks, I need the chaos to stop. Pretty please? We have stray bullets, riots, and now not-so-vague threats? What the hey?

We received this email during our Criminal Law review session:
Students, Faculty and Staff:

The University will be closing three buildings on our West Bank campus due to a time-specific threat of violence obtained by law enforcement. Those buildings include the Carlson School of Management, Hanson Hall and the Hubert H. Humphrey Center. All classes and activities beginning at or after 3:45 are cancelled in those buildings and they will close at 4:30 p.m.

This was a very specific threat of violence targeted at these three buildings. We are erring on the side of caution by canceling classes and activities and closing the buildings. UMPD is actively investigating this threat.

The Humphrey Institute’s “Changing Competitive Position of Public Research Universities” lecture has been moved to 5 Blegen Hall.

The threat was specific enough that regular operations will resume on Friday morning.

I apologize for the inconvenience and thank you for your cooperation.
UPDATE: Turns out it was a shooting threat:
The University of Minnesota closed three buildings on its West Bank campus this afternoon after a note was found saying that a shooting was planned this evening, prompting the cancellation of classes in those heavily populated buildings, school officials said. (read on)