Flags raised to half-staff in front of the Gregg County Courthouse Tuesday morning in observance of the death of U.S. Senator John McCain. A POW-MIA flag was also raised to half-staff at the courthouse in addition to the flags of the United States, Texas and Gregg County. McCain, who died on Saturday, August 25, was a prisoner of war during the Vietnam War from 1967 until 1973. After returning home, McCain entered politics and served as Arizona's senator from 1987 until his death.