Special teams at U.S. universities try to identify students at risk of violence

(Reuters) - Last week's shooting at the University of North Carolina at Charlotte that killed two students and wounded four was just the kind of tragedy a team of officials at the school was trying to prevent.

UNC Charlotte has a behavioral intervention team (BIT) tasked with reviewing reports about troubled students and intervening to prevent harm to themselves or others. Similar teams meet regularly at hundreds of other U.S. universities.