Officials are identifying four of the six victims who died in a midair collision of two vintage warplanes at a Dallas air show on Saturday. Terry Barker was an Army veteran and a former city councilman in the DFW suburb of Keller. Major Curtis Rowe of Ohio was a mechanic for the B-17 that crashed and was one of five crew members on board. Craig Hutain was a pilot from Montgomery, north of Houston. He was flying the single-pilot P-63 King Cobra that crashed. Len Root was an American Airlines captain who was also on board the B-17.