
Overview
Retired U.S. Air Force Major General William Neil McCasland vanished from his Albuquerque home on 27 February 2024, prompting a wave of inquiries from both national‑security analysts and the UFO‑research community. The disappearance coincided with heightened geopolitical tension in the Middle East and renewed public calls—most notably from former President Donald Trump—for the declassification of UFO‑related files. While the case remains open, investigators have focused on a 911 call placed by McCasland’s wife, aerospace engineer Susan Wilkerson, as a key piece of evidence.
Background and Expertise
During a three‑decade career, McCasland earned one of the highest security clearances in the Department of Defense and was assigned to several classified space‑defense programs. Official records list his responsibilities as overseeing the development of space‑based weaponry and advanced sensor systems. Unverified reports in the open‑source community allege that he also managed projects aimed at reverse‑engineering unidentified aerial phenomena (UAP), a claim that has not been confirmed by any government agency. His reputation as a “UFO gatekeeper” has made his disappearance a focal point for those tracking alleged extraterrestrial research.
Details of the Disappearance
Neighbors reported that a repair technician was the last confirmed person to see McCasland at his residence. A preliminary police inventory noted several items left behind—his mobile phone (found powered off), prescription glasses, and a wearable electronic device—while a firearm, holster, and his wallet were missing. Investigators have not ruled out voluntary departure, but the pattern of unexplained incidents involving former colleagues—some of whom have died or disappeared under “mysterious circumstances”—has raised questions about potential foul play. The Albuquerque Police Department has classified the case as a missing‑person investigation and is awaiting further forensic analysis of the home.
The 911 Call and Family Statements
At approximately 3 p.m., three hours after discovering her husband’s absence, Wilkerson called 911. In the recorded exchange, she told dispatchers, “I have some indication that he must have planned not to be found.” She added that McCasland had been grappling with severe anxiety, chronic insomnia, and short‑term memory loss, and had expressed a desire to avoid “living” if his health continued to decline. The call also revealed that he possessed a firearm, which Wilkerson described as a “standard‑issue sidearm” he kept for personal protection. Law enforcement officials have not released the full transcript, citing privacy concerns, but the recorded statements have been cited by both investigators and media outlets as central to understanding his state of mind.
Theories and Ongoing Investigation
Three primary scenarios dominate current speculation. First, a voluntary disappearance: analysts suggest McCasland may have chosen to go “off the grid” to shield his family from potential threats or to evade compulsory testimony before Congress regarding pending UAP disclosures. Second, foul play or state interference: given his access to classified weaponry and alleged UAP data, some experts warn that foreign intelligence services or domestic actors could have targeted him to prevent the release of sensitive information. Third, self‑harm: the presence of a firearm and documented mental‑health struggles have led some investigators to consider suicide as a possible outcome. The Albuquerque Police Department has not publicly favored any single hypothesis, emphasizing that the investigation remains “active and evolving.”
Conclusion
The McCasland case sits at the intersection of national security, mental‑health concerns, and the enduring public fascination with unidentified aerial phenomena. While the 911 call provides a glimpse into the family’s perspective, concrete evidence—whether forensic, digital, or testimonial—has yet to emerge. As authorities continue to examine the scene, interview witnesses, and process forensic data, the broader implications for UAP transparency and the protection of high‑clearance personnel remain unresolved


