A lone gunman is dead after officials said he killed at least 31 people Monday during shootings in a dorm and a building housing classrooms at Virginia Tech, making it the deadliest school attack in U.S. history.Officials said the shooting incidents occurred two hours apart.
Attorney General Bob McDonnell confirmed the death toll and said, "That's the best information that I've got from the law enforcement officers who are on the scene."
It was not clear if the gunman was killed by police or if he took his own life.
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