Police secure the scene where a gunman killed a campus police officer and one other person after a traffic stop Thursday. (Matt Gentry / Roanoke [Va.] Times)
A police officer with an assault rifle stands guard in a Virginia Tech parking lot as the search for the gunman gets started. (Matt Gentry / Roanoke [Va.] Times)
Police gather outside Torgersen Hall on the Virginia Tech campus before joining the search for the gunman. (Jeff Sturgeon / Roanoke [Va.] Times)
Police officers block a road on the Virginia Tech campus in Blacksburg, Va., after a gunman killed a police officer and another person Thursday, Dec. 8, 2011. (Matt Gentry / The Roanoke [Va.] Times)
Local S.W.A.T. team members congregate near a parking lot on the campus of Virginia Tech to look for an armed man who is suspected of killing two people, Thursday, Dec. 8, 2011, in Blacksburg, Va. (Don Petersen / Associated Press)
Virginia Tech police officers console one another as they move toward the scene where a fellow police officer was killed in a parking lot on the campus of Virginia Tech, Thursday December 8, 2011, in Blacksburg, Va. (Don Petersen / Associated Press)
