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FBI says shooter had valid pass to get into Washington Navy Yard (1:56) 

Sept. 17 - In a news conference a day after a mass shooting at the U.S. Naval Yard, FBI agent Valerie Parlave told reporters shooting suspect Aaron Alexis, armed with a shotgun, used a valid pass to enter Building 197 at the base where he may have gained access to a handgun inside. Rough Cut (no reporter narration). ( Transcript )

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