Deb Dunham, the mother of Marine Corps Cpl. Jason L. Dunham, signs the book at the 9/11 Memorial Room during the Pentagon tour at the Pentagon in Washington D.C., Jan. 12, 2007. The family toured the building before attending the Hall of Heroes ceremony for Dunham, who died April 22, 2004, at Bethesda Naval Hospital in Bethesda, Md., of injuries sustained April 14, when he used his body to shield comrades from a grenade explosion in Husaybah, Iraq. Marine Corps photo by Sgt. Richard L. McCumber III