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    Profile: US navy base shooter Aaron Alexis

    Al Jazeera English

    by Al Jazeera English

    US authorities probing the shooting spree at Washington's Navy Yard, which left 13 people dead and eight injured, have said that a lone gunman carried out the killings.

    Authorities said military contractor Aaron Alexis, 34, of Texas, launched the attack on Monday inside a building at the US Navy complex, spraying gunfire on office workers in the cafeteria and in the hallway at the heavily secured installation.