Law enforcement faced a deluge of 911 calls containing false alarms, adding chaos to the already difficult task of securing a campus with 400 buildings.
While elementary, middle and high schools have adopted new safety technology to try to deter gun violence, the same changes have not come to the more open campuses of colleges and universities.
The gunfire on Monday night left three dead and five critically injured. For some students, the familiar rituals of sorrow, anger and disbelief were playing out again.