By Chris Boyette, CNN
(CNN) — A high-ranking retired US Air Force major general who once commanded a base long associated with UFO lore has been missing for nearly two weeks, and authorities are appealing to the public for help locating him, according to the Bernalillo County Sheriff’s Office in New Mexico.
Retired Air Force Maj. Gen. William Neil McCasland, 68, left his Albuquerque home on foot at approximately 11 a.m. February 27 and has not been in contact with family or friends since, the sheriff’s office said in a news release. His cell phone was left behind, the sheriff’s office told CNN.
The sheriff’s office issued a Silver Alert the next day, which remains in effect. An unspecified “medical issue” has added urgency to the search.
Authorities have conducted extensive neighborhood canvassing, interviews and coordinated search operations in an effort to find him. They contacted more than 600 homeowners in the neighborhood, the sheriff’s office said.
McCasland is 5-foot-11 with white hair and blue eyes, according to the sheriff’s office. He is “an avid outdoorsman” who hikes, runs and cycles in Albuquerque’s Northeast Heights neighborhood and the Sandia Mountains foothills.
“Due to his background and established partnerships, BCSO is coordinating closely with multiple agencies,” including the FBI Albuquerque Field Office and Kirtland Air Force Base, the sheriff’s office said. The FBI has confirmed its involvement.
McCasland held some of the most sensitive positions in the US military, according to the Air Force. An astronautical engineer with degrees from the US Air Force Academy, the Massachusetts Institute of Technology and the John F. Kennedy School of Government at Harvard University, he held a series of high-level posts during his career.
He served as chief engineer on the Department of Defense’s Global Positioning System program, system program director of the Space Based Laser Project Office and director of special programs at the Pentagon. He also commanded the Air Force Research Laboratory at Wright-Patterson Air Force Base — a base long rumored to house extraterrestrial debris linked to Roswell, despite Air Force denials.
Following his retirement, McCasland worked with To The Stars, Inc., a company co-founded by Blink-182 musician Tom DeLonge that says it studies information about unidentified aerial phenomena.
CNN has reached out to the Air Force and McCasland’s family for comment.
His disappearance came just days after President Donald Trump announced in a Truth Social post he was directing the Pentagon and other federal agencies to release government records related to extraterrestrial life and UFOs.
“I hope and pray this is not one of those cases where a former senior military officer was specifically targeted and that he will be found happy and healthy in the immediate near term for his sake and the sake of his loved ones,” Luis Elizondo, a former Department of Defe