The FBI released security footage today of alleged Navy Yard shooter Aaron Alexis as he navigated the facility carrying a weapon and ducking behind walls.Alexis, a 34-year-old former Navy reservist and IT contractor, allegedly opened fire inside a building at the Washington Navy Yard on Sept. 16, killing 12 people. He was killed in a shootout with police.
See photos from the video surveillance.
The Navy released documents detailing the history of Alexis' military career. He received an Honorable discharge, and was issued a Navy Reserve Identification and Privilege card in February 2011.
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