An Army helicopter pilot from northern Virginia is one of two soldiers killed in Afghanistan by enemy fire. The Pentagon said Friday that 26-year-old 1st Lt. Robert J. Hess of Fairfax died Tuesday in the Pul-E-Alam district of Logar province in eastern Afghanistan, from wounds suffered as a result of indirect fire. Also killed was 32-year-old Capt. Aaron R. Blanchard of Selah, Wash. Both soldiers were assigned to the 2nd Aviation Battalion, 10th Combat Aviation Brigade, 10th Mountain Division, at Fort Drum, N.Y.