130917-N-PM781-003 WASHINGTON (Sept. 17, 2013) Secretary of Defense Chuck Hagel, right, and Chairman of the Joint Chiefs of Staff Gen. Martin E. Dempsey place a wreath at the Navy Memorial, as Adm. James A. Winnefeld, Jr., Vice Chairman of the Joint Chiefs of Staff, back left, Secretary of the Navy (SECNAV) Ray Mabus and Chief of Naval Operations Adm. Jonathan Greenert look on. The ceremony was held in honor of the victims of the tragic shooting at the Washington Navy Yard Sept. 16. (U.S. Navy photo by Mass Communication Specialist 1st Class Arif Patani/Released)