Media ID: 55317381
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Media ID: 55317146
Caption:
Caption:
Secretary of Defense Chuck Hagel (L) Chairman of the Joint Chiefs of Staff Gen. Martin E. Dempsey brief the press at the Pentagon, September 18, 2013 in Arlington, Virginia. Secretary Hagel addressed the Washington DC Naval Yard shooting that killed 12 people on September 16th. (Rod Lamkey/Getty Images/AFP)
Caption:
Aaron Alexis, who the FBI believe to be responsible for the September 16, 2013 shootings at the Washington Navy Yard in Washington, D.C., is shown in this undated handout photograph. (Reuters)