NIU Shooting Timeline

Track events as a former grad student opened fire in a lecture hall at Northern Illinois University, killing five people and wounding at least 15 more before taking his own life.
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Geology 104 begins in a large lecture classroom in Cole Hall. More than 160 students are registered for the class.
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A man dressed in black and carrying a shotgun and two handguns steps out from hiding and begins a "very brief rapid-fire assault" before killing himself, says NIU President John Peters. Campus police are on the scene in "less than two minutes," says NIU Police Chief Donald Grady.
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Officials post a message on NIU's Web site saying there is a report of a possible gunman on campus and warn students to "get to a safe area and take precautions until given the all clear."
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NIU officials say all classes are canceled and campus is closed.
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School officials confirm there has been a shooting on campus and several people have been taken away by ambulance. Officials urge people not to come to campus.
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Campus police report on the Web site that the scene is secure.
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Campus police say the immediate danger has passed and "the gunman is no longer a threat."
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NIU officials ask all students to call their parents as soon as possible.
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Police say at a news conference the shooter is dead by a self-inflicted gunshot.
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NIU officials say 18 victims have been transported to Kishwaukee Community Hospital in DeKalb. They say four victims are in critical condition.
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Peters confirms at a news conference that the gunman killed five people and wounded more than a dozen others before fatally shooting himself. He says there is no known motive.
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An Illinois coroner says another shooting victim has died, raising the death toll in the shooting to seven, including the gunman.
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Florida authorities and a university official have identified the suspect in the Northern Illinois University slayings as 27-year-old former student Steven Kazmierczak.
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The DeKalb County coroner corrects himself, saying five people were killed by the gunman, not six, in the shooting rampage.
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Credits:

AP/CBS
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