The FBI is assisting a local sheriff's office in the search for a missing retired Air Force general who disappeared from his home in late February. Retired Maj. Gen. William N. "Neil" McCasland held a number of "space research, acquisition and operations roles within the Air Force and the National Reconnaissance Office" while enlisted, according to the Air Force. The roles included director-level positions at the Pentagon, as well as commanding the Phillips Research Site of Air Force Research