A flag-draped coffin containing Gaffaney's body was flown from Fort Hood to Marine Corps Air Station Miramar Friday.
Republican Rep. John Carter says treating the victims as if they were killed in a battle zone provides a number of benefits to surviovors and allows military personnel to receive the Purple Heart. Civilans would receive the Secretary of Defense Medal of Freedom.
Family of military personnel who died or were wounded in the shooting would get survivor payments, tax breaks, funeral travel expenses and other benefits with the designation.
Army psychiatrist Maj. Nidal Malik Hasan is accused of killing 13 people in a Nov. 5 shooting rampage at the sprawling central Texas Army post. Another 43 were injured with gunshot wounds.