Colleges Weigh When to Alert Students of Danger

By ERIC HOOVER and SARA LIPKA

At the University of Chicago, the third Monday in November began with an hour of violence. Around 12:30 a.m., an assailant fired a shot at a staff member who was walking on the campus. At 1:15 a group of men robbed two female students on a nearby street. Just before 1:30, Amadou Cisse, a doctoral student, was...