Virginia Tech Gunman

August 4, 2011 - 5:30 PM
Police escort summer camp students from Dietrick Hall dining facility after Virginia Tech was locked down for several hours Thursday, Aug. 4, 2011, in Blacksburg, VA., when three children attending the summer camp said they saw a man holding what looked like a gun on the campus where a 2007 massacre left 33 people dead. The university issued an alert on its website at 9:37 a.m. telling students and employees to stay inside and lock their doors. (AP Photo/Don Petersen)