Shooting time llineAssociated Press
Published April 17, 2007
The first crackle of gunfire is heard on the campus of Virginia Tech.
Classes on the Blacksburg, Va., campus go ahead as scheduled.
In a mass e-mail, Virginia Tech officials announce a shooting has occurred at a dorm, say police are on the scene and urge everyone in the university community to "be cautious" and contact police if they see anything suspicious or have information on the case.
Police believe the shooting at Norris Hall, an engineering building nearly a half-mile away from the dorm, begins.
The college sends out a second e-mail. "Please stay put," it warns. "A gunman is loose on campus. Stay in buildings until further notice. Stay away from all windows."
The college sends out a third e-mail, announcing classes are canceled and repeating the warning for everyone to lock their doors and stay away from windows.
The college announces the end of the worst mass shooting in U.S. history in a fourth e-mail. It began with the subject "Second Shooting Reported; Police have one gunman in custody."