Federal investigators are examining roughly 10 to 12 deaths and disappearances of scientists and government researchers who worked on classified nuclear, aerospace, and defense programs, a probe that now has President Trump calling the situation “pretty serious stuff” and members of Congress demanding immediate answers.
The FBI announced Tuesday it would lead the investigation, working alongside the Department of Energy, the Department of Defense and local law enforcement to determine whether the cases share any connection. White House press secretary Karoline Leavitt said on X that the administration is “actively working with all relevant agencies and the FBI to holistically review all of the cases together” and that “no stone will be unturned.”
President Trump told reporters the week of April 20 that he had just come from a meeting on the mysterious pattern. “I hope it’s random, but we’re going to know in the next week and a half,” Trump said, adding that “some of them were very important people.”
One of the most puzzling cases centers on Joshua LeBlanc, a 29-year-old NASA aerospace electrical engineer whose charred body was pulled from a burned Tesla discovered outside Huntsville, Alabama, in summer 2025. LeBlanc worked on NASA’s nuclear propulsion programs at the Marshall Space Flight Center and was reported missing on July 22, 2025, after he didn’t show up at work or respond to his family. His Tesla had left the roadway, struck a guardrail, and slammed into trees before bursting into flames, leaving the vehicle beyond recognition.
Tesla vehicle data helped authorities reconstruct LeBlanc’s final movements, revealing the car spent four hours at Huntsville International Airport before heading west on rural backroads. While officials have not announced findings linking his death to other cases, it has been folded into a federal review examining about 10 to 12 cases dating back to 2022.
Retired Air Force Maj. Gen. William Neil McCasland, 68, vanished from his Albuquerque, New Mexico, home in February, taking hiking boots, his wallet, and a .38-caliber revolver in a leather holster. Among the things he left at home were his mobile phone, corrective eyeglasses, and fitness tracking devices. McCasland—the former commanding officer of the Air Force Research Laboratory at Wright-Patterson Air Force Base—had past links to To The Stars, Inc., a company co-founded by Blink-182 musician Tom DeLonge that studies unidentified aerial phenomena, a connection that has supercharged online speculation.
His wife, Susan McCasland Wilkerson, has pushed back forcefully on theories that her husband was abducted for classified knowledge. “He retired from the [Air Force] almost 13 years ago and has had only very commonly held clearances since,” she wrote in a Facebook post. She added in the same post: “This connection is not a reason for someone to abduct Neil.”
As of late April, investigators in Bernalillo County confirmed they have found no evidence of foul play in McCasland’s disappearance. The only physical trace recovered was a gray Air Force sweatshirt found 1.25 miles east of his home on March 7. He remains missing.
Amy Eskridge, 34, co-founded the Institute for Exotic Science in Huntsville and had been working on antigravity technology. She died in June 2022 under different circumstances. Authorities ruled her death a suicide by self-inflicted gunshot wound, but her name has resurfaced as federal officials piece together a broader timeline.
Other names surfacing in the federal review include Monica Reza, a 60-year-old aerospace engineer who served as director of materials processing at NASA’s Jet Propulsion Laboratory and went missing while hiking in the Angeles National Forest in June 2025, and Steven Abel Garcia, a 48-year-old government contractor who worked as a property custodian for the Kansas City National Security Campus in Albuquerque and has been missing since August 2025. Several of the cases cluster around NASA’s Jet Propulsion Laboratory and Los Alamos National Laboratory, two of the nation’s most sensitive research facilities.
Secretary of Energy Chris Wright confirmed on Fox News Sunday that the Department of Energy (DOE) — which oversees the nation’s nuclear labs — is a central player in the probe, telling viewers that “a lot of the nuclear security scientists are in DOE.”
The House Oversight Committee has launched its own parallel investigation, formally requesting briefings from the Department of Defense, the Department of Energy, NASA and the FBI regarding the “disappearance and death of individuals with access to sensitive U.S. scientific information.” The committee’s letters gave all relevant agencies a deadline of April 27 to provide a staff-level briefing.
Rep. Tim Burchett, R-Tenn., has been among the loudest voices pressing for answers, telling the Daily Mail that U.S. intelligence agencies had previously stymied his attempts to learn what happened to McCasland and several other researchers. “The numbers seem very high in these certain areas of research,” Burchett said. “I think we’d better be paying attention, and I don’t think we should trust our government.”
The Department of Defense told the committee directly that “there are no active national security investigations of any reported missing person who was a current or former clearance holder involved in special access programs” — a response the committee said “leaves many unanswered questions.”
NASA, for its part, has said it is cooperating fully with investigators and is committed to transparency. However, spokesperson Bethany Stevens stated that “at this time, nothing related to NASA indicates a national security threat.”
Officials familiar with the individual investigations caution that many of the cases appear unrelated on closer inspection, while others appear to stem from medical issues or personal circumstances. Yet the common threads—access to sensitive nuclear, aerospace or defense research and a post-2022 timeline—have proven impossible for federal investigators to ignore.
Outside experts have pushed back sharply on the conspiracy framing. Science writer Mick West has noted that more than 700,000 people hold top-secret clearances in U.S. aerospace and nuclear sectors, a pool large enough that roughly 250 would statistically die from homicides and suicides over any comparable four-year period. Medical sociologist Robert Bartholomew, who specializes in social hysteria, has characterized the perceived pattern as a textbook case of apophenia — the human tendency to find meaningful connections in unrelated events.
As the FBI expands its review and lawmakers demand briefings, the families of the missing and deceased are left waiting for answers. Whether the pattern proves to be a chilling coordinated campaign against America’s scientific elite, or a tragic series of coincidences amplified by the internet age, may become clearer in the coming weeks, as investigators work across agencies to untangle the mystery.
