BLACKSBURG, Va. - A gunman opened fire in a Virginia Tech dorm and then, [size=18]two hours later[/size], in a classroom across campus Monday, killing at least 30 people in the deadliest shooting rampage in U.S. history, government officials told The Associated Press. The gunman was killed, bringing the death toll to 31.
как получилось, что не предотвратили это "two hours later" мне не понятно.
в любом случае ужасная трагедия.