Trump Downplays Link Among Missing and Dead Scientists Tied to U.S. Research Programs
President Donald Trump stated that any connection between the recent deaths and disappearances of several scientists and workers involved in advanced U.S. research is “minimal.” His comments come amid growing public speculation, online rumors, and congressional scrutiny over a series of incidents spanning several years.
The cases first drew widespread attention after reports linked at least 13 individuals—many with backgrounds in nuclear science, space exploration, and defense programs—to suspicious deaths or vanishings between 2022 and 2026. Trump addressed the issue earlier this month, describing the situation as “pretty serious stuff” and expressing hope that most were accidents, while acknowledging that “some of them were very important people.”
White House Press Secretary Karoline Leavitt confirmed the day before that federal agencies would review the cases. In his latest remarks to reporters, Trump sought to temper speculation: “There are thousands or even hundreds of thousands of scientists working for us, so 10 is a lot, but it’s still a very small number compared to that. Some of them that we looked at are very sad cases—in some cases, some were sick, some left this earth self-inflicted. Some had other things. So far, we’re finding that there’s not much of a connection. We’ll let you know.”
Despite the president’s assessment, concern persists on Capitol Hill. On Thursday, Rep. Eric Burlison (R-Mo.) announced he would investigate the “mystery” surrounding the 13 scientists. “The count is up to 13. Thirteen American scientists tied to nuclear and space research, missing or dead,” Burlison posted on X. “Every adversary on the planet celebrates each one we lose. We are weaker as a nation today because of these losses, and I’m working to get answers.”
Burlison has been particularly vocal about the death of Matthew Sullivan, a 39-year-old former U.S. Air Force intelligence officer who earned a Bronze Star in Operation Enduring Freedom. Sullivan later worked with the National Air and Space Intelligence Center, the NSA, and Air Force Intelligence. He died of an accidental drug overdose in his Falls Church, Virginia, home on May 12, 2024—just after agreeing to testify before Congress about government UFO activities. The congressman said he pressed the FBI on Sullivan’s case but received no confirmation or denial of an investigation.
Other notable cases include the disappearance of retired Air Force Maj. Gen. William Neil McCasland earlier this year. McCasland previously led the Air Force Research Laboratory and had connections to Los Alamos National Laboratory. Missing individuals between 2023 and 2026 include Monica Reza (60), Melissa Casias (53), Anthony Chavez (79), and Steven Garcia (48). Deaths in the same period include Michael David Hicks (59), Frank Maiwald (61), Nuno Loureiro (47), Jason Thomas (45), Amy Eskridge (34), Carl Grillmair (47), and Joshua LeBlanc (29). Many worked in aerospace, defense, or space-related fields, often under classified or high-profile programs.
The House Oversight Committee has taken formal action, with Chairman James Comer and Rep. Burlison sending letters to key officials—including FBI Director Kash Patel, Energy Secretary Chris Wright, Defense Secretary Pete Hegseth, and NASA Administrator Jared Isaacman—requesting briefings on the deaths and disappearances of at least 11 researchers linked to NASA, SpaceX, Blue Origin, and other entities.
While the FBI and NASA have launched reviews, no official link has been confirmed between the cases. Authorities continue to investigate amid calls for transparency from lawmakers and the public.
