This morning a man entered the Perry-Castaneda Library at the University of Texas with an AK-47 and shot up the sixth floor. (The sixth floor, if I recall correctly, is mostly texts in history and political science and the library's collection of children's books.) No one was hurt but the gunman was killed -- I don't know yet if it was self-inflicted. [ADDED LATER: the gunman seems to have gone through the floors shooting and to have shot himself on the sixth floor.] However, police think there was an accomplice [ADDED LATER: more accurately, because of variations in witness testimony, they aren't sure yet if there is one], probably unarmed, and the University is on lockdown. There are rumors that the gunman was screaming about layoffs at the library.
I'll put up any informative links about the lockdown, etc., as they come up.
The UT Emergency Page
UPDATE: The campus is still closed but no longer on lockdown. Although there had been back and forth about whether there was a second suspect, this has now been ruled out.