Air Force intelligence officer and Bronze Star recipient Matthew James Sullivan, 39, died on May 12, 2024, from an accidental overdose of alcohol and prescription drugs, just weeks after agreeing to testify before Congress on secret UFO crash-retrieval programs. Retired U.S. Air Force Maj. Gen. William "Neil" McCasland, 68, vanished from his Albuquerque, New Mexico home on February 27, 2026.