Police in Blacksburg, Virginia right now are looking for the gunman who shot and killed a police officer and another person on the campus of Virginia Tech.
Witnesses say the officer was in the middle of a traffic stop Thursday afternoon when he was shot. The other victim was killed when the gunman was running away through a parking lot.
Right now the school in on lockdown as police search for the shooter.
Virginia Tech was the scene of the worst school shooting in the nation's history -- Cho Seung-Hui killed 32 people before turning the gun on himself in 2007.