Tom Entwistle, Air Combat Command A9 director, leads a final roll call for ACC A9 during a memorial service for Maj. Raymond Estelle at the Langley Chapel at Langley Air Force Base, Va., May 11, 2011. “Major Estelle was an extraordinary Airman and invaluable member of our team. He will be greatly missed. Our thoughts and prayers go out to his family for the loss we all share,” said Mr. Entwistle. (U.S. Air Force photo/Senior Airman Antoinette Gibson)