Keywords: 130922-D-KC128-556 (9918784774).jpg President Barack Obama delivers remarks during a memorial service Sept 22 2013 at Marine Barracks Washington in Washington D C The event was held to pay tribute to the 12 people killed when a gunman opened fire at the Navy Yard six days earlier The service also included remarks by Secretary of Defense Chuck Hagel Secretary of the Navy Ray Mabus Chief of Naval Operations Adm Jonathan W Greenert and D C Mayor Vincent Gray DoD photo by Mass Communication Specialist 1st Class Daniel Hinton U S Navy/Released https //www flickr com/photos/39955793 N07/9918784774/ 130922-D-KC128-556 2013-09-22 17 19 https //www flickr com/people/39955793 N07 U S Department of Defense Current Photos PD-USGov U S Department of Defense Current Photos https //flickr com/photos/39955793 N07/9918784774 2016-09-03 08 19 38 United States Government Work District of Columbia Shooting United States Department of Defense |