Before he inexplicably disappeared, William Neil McCasland, the missing U.S. Air Force general connected to the military’s alleged UFO research programs, was reportedly attempting to resign from his position at a federal research laboratory.
Sara Bondink, a self-described historical researcher and novelist who has been following the McCasland probe, revealed new details obtained through a Freedom of Information Act request.
Although the general’s wife, Susan Wilkerson, has previously stated that her husband was no longer in possession of any top-secret clearances with the U.S. government, DailyMail.com reports that she told the Bernalillo County Sheriff’s Ghost Unit in an interview conducted on March 3 that he was still actively involved in at least four organizations that had close connections to national security secrets.
Major General McCasland’s wife said that he was experiencing a serious mental decline and was attempting to step down from a number of the covert initiatives he was engaged in when he disappeared without a trace.
A police report also states that just days before he disappeared, McCasland took a flight to Washington, D.C., to formally resign from Riverside Research, a nonprofit that offers engineering, scientific research, and advisory services on cutting-edge technology projects.
Wilkerson added that the general had also tried to leave his job at a University Affiliated Research Center (UARC), but “leadership was trying to convince him otherwise.” A UARC is a research partnership between a university and the Pentagon that allows the military to obtain independent assistance with advanced science and technology projects.
Major General McCasland reportedly had several meetings with government organizations before disappearing
Wilkerson also verified that Major General McCasland met with members of the U.S. Space Force and the Kirtland Partnership, a nonprofit organization dedicated to safeguarding and expanding the military research facility and nuclear weapons lab, in the hours before he vanished.
Before going missing, he also worked as a paid consultant at Sandia National Laboratories, a U.S. government-owned research facility that develops advanced technology for national security, including nuclear weapons.
McCasland’s wife previously told authorities that she thought the retired general “planned not to be found” after he last left his house without his phone, wearable technology, or any form of identification. Authorities also believe he took his .38 caliber handgun with him, as they have not been able to locate it since his disappearance.
Major General McCasland’s former colleague, Monica Reza, also vanished under mysterious circumstances last summer. The FBI is currently investigating a series of mysterious deaths and disappearances of people like McCasland and Reza, who had ties to secret government research.
Hikers recently found the body of one of those missing researchers, Melissa Casias, in Carson National Forest with a handgun next to her remains. Casias had worked at Los Alamos National Laboratory from March 2023 up until her disappearance on June 26, 2025.