Tech. Sgt. Scott E. Duffman, Special Tactics Pararescueman and Albuquerque, N.M. native is one of the 20 Airmen killed in action since 9/11 and is being honored during the memorial march. Duffman was killed Feb. 18, 2007, when the U.S. Army MH-47 Chinook he was flying in experienced a sudden loss of power and crashe din eastern Afghanistan. (Courtesy Photo)