A married mom who vanished last year may be tied to a string of mysterious deaths and disappearances of US scientists and military officials with access to potentially sensitive information, according to a report.
Melissa Casias, who worked with her husband as an administrative assistant at Los Alamos National Laboratory [LANL] — famous for developing nuclear weapons during the Manhattan Project — has not been seen since she dropped lunch off for her daughter in New Mexico last summer.
She is one of four high-clearance people who have died or gone missing since June 2025 with connections to UFO-linked retired Air Force Gen. William McCasland, who vanished last month, according to the Daily Mail.
Former FBI Assistant Director Chris Swecker told the Mail he is now worried that she is part of an alarming pattern, as her work as an assistant at LANL may have made her a target for kidnapping.
“In a classified lab, or just a high clearance lab, they would basically be in the know on what’s going on,” Swecker, who spent 24 years with the agency, said. “And it wouldn’t be the first time their administrative assistant has been targeted.”
The FBI “can’t have these examined in isolation and compartmentalize them as individual missing person cases,” he added.
Casias and her husband both worked at LANL in New Mexico. She was last seen on camera on June 25, 2025 walking alone on a highway without her wallet, phone or keys, after telling family members she would be working from home, Dateline reported.
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