12 victims slain in Navy Yard shooting rampage; dead suspect ID'd

Photos: 2013: Mass shooting at D.C. Navy Yard
A police officer runs near the scene of the shooting rampage at the Washington Navy Yard on Monday, September 16, 2013. Authorities said at least 12 people -- and the suspect -- were killed in the shooting.
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Photos: 2013: Mass shooting at D.C. Navy Yard
A U.S. Park Police officer stands guard near the scene of the shooting.
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Photos: 2013: Mass shooting at D.C. Navy Yard
Military security observes the scene from a nearby rooftop.
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Photos: 2013: Mass shooting at D.C. Navy Yard
The White House flies the U.S. flag at half-staff following the shooting.
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Photos: 2013: Mass shooting at D.C. Navy Yard
A police boat patrols the waters at the Washington Navy Yard.
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