"UNLV Shooting: Suspect Identified as Professor, Students Receive Alerts During Attack"
The gunman responsible for the shooting at the University of Nevada, Las Vegas campus had sent 22 letters containing an unknown white powder to various university personnel across the country prior to the attack. The suspect, identified as 67-year-old Anthony Polito, was a career college professor who had applied for a job at the school but was not accepted. Three of the victims have been identified as faculty members, and the fourth victim is yet to be identified. The motive for the shooting is still unknown.