The FBI has launched a national investigation into suspicious disappearances and deaths of scientists working on advanced UFO and nuclear technologies over the past few years. The incidents have raised serious concerns given the sensitive nature of the individuals’ work.
Top House Oversight Committee Republican James Comer recently told Fox News that “it does appear there’s a high possibility something sinister is taking place here.” He emphasized, “It’s very unlikely this is a coincidence. Congress is very concerned about this,” labeling the issue a national security threat. FBI Director Kash Patel stated his agency is “working with the Department of Energy, Department of Defense, and state and local law enforcement partners” to determine whether classified access, foreign actors, or other connections are involved. President Donald Trump described the incidents as “pretty serious stuff,” noting that “some of them were very important people.”
The cases involve 11 individuals affiliated with key federal agencies. Among the most high-profile disappearances is that of retired Air Force major general William Neil McCasland, who vanished from his home in Albuquerque, New Mexico, on February 27. McCasland had overseen classified space weapons programs and led research at Wright-Patterson Air Force Base in Dayton, Ohio—a site long rumored to contain extraterrestrial debris from a Roswell crash. He disappeared without his phone or glasses while leaving his firearm behind. Authorities conducted extensive searches, including drone operations and ground teams, but found no trace of him. His wife dismissed theories that he suffered neurological confusion, stating he was “not confused and disoriented.” She noted McCasland had access to highly classified programs and worked with former Blink-182 frontman Tom DeLonge as a free consultant before halting contact after political hacking incidents involving John Podesta’s emails.
Another missing scientist is Monica Jacinto Reza, an aerospace rocket scientist who vanished June 22, 2025, while hiking in the Angeles National Forest. Police reported she was “about 30 feet behind the person she was with, smiling and waving” before disappearing.
Other cases include astrophysicist Carl Grillmair shot on February 16, nuclear fusion researcher Nuno Loureiro killed at his Brookline home in December 2025, NASA scientists Michael David Hicks (died 2023) and Frank Maiwald (died 2024), government contractor Steve Garcia, Los Alamos National Laboratory associates Melissa Casias and Anthony Chavez, and pharmaceutical researcher Jason Thomas whose body was recovered months after his December 2025 disappearance. Dr. Amy Eskridge, who claimed to have independently developed anti-gravity technology, allegedly shot herself in June 2022 following years of death threats and harassment.
UFO reporter Ross Coulthart suggested McCasland’s disappearance may indicate a struggle or kidnapping, noting the absence of security camera footage capturing his exit. Meanwhile, Representative Tim Burchett warned that classified information about UFO programs could “set the Earth on fire” if disclosed.
The FBI probe continues to examine whether these incidents are linked to foreign operations, witness protection programs, or efforts to suppress technological breakthroughs critical to national security.