A former Navy man launched an attack Monday morning inside a building at the Washington Navy Yard, spraying gunfire on office workers in the cafeteria and in the hallway at the heavily secured installation, authorities said. Thirteen people were killed, including the gunman.

Authorities said they were looking for a second possible attacker who may have been disguised in a military-style uniform. Read more at 

UPDATE: Dead Navy Yard Gunman Identified As Aaron Alexis, 13 Confirmed Dead  was originally published on

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