Loved ones and family of the Navy Yard shooting victims wait for a memorial service at the Marine Barracks September 22, 2013 in Washington, DC. US President Barack Obama, US Secretary of Defense Chuck Hagel and others attended the memorial to honor victims of the September 16, 2013 shooting at the Washington Navy Yard. AFP PHOTO/Brendan SMIALOWSKI (Photo credit should read BRENDAN SMIALOWSKI/AFP/Getty Images)