The FBI has launched a sweeping investigation into a disturbing pattern of deaths and disappearances involving at least 10 scientists and government researchers tied to America’s most sensitive nuclear, aerospace, and defense programs, now drawing attention from the Trump White House and fueling rampant online speculation about whether those with access to classified research are being systematically targeted.
At the center of the unfolding probe is Joshua LeBlanc, a 29-year-old NASA aerospace electrical engineer whose charred body was pulled from the wreckage of his burned Tesla outside Huntsville, Alabama, in summer 2025. LeBlanc, who worked on NASA’s nuclear propulsion programs at the Marshall Space Flight Center, was reported missing on July 22, 2025, after failing to show up at work or respond to his family. Hours later, investigators discovered his Tesla had left the roadway, struck a guardrail, and slammed into trees before bursting into flames. The vehicle was burned beyond recognition.
Authorities used Tesla vehicle data to reconstruct LeBlanc’s final movements, which showed 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.
A Growing List of Troubling Cases
LeBlanc isn’t the only Alabama-based researcher drawing renewed attention. 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.
The most recent — and arguably most high-profile — case involves retired Air Force Maj. Gen. William Neil McCasland, 68, who vanished from his Albuquerque, New Mexico, home in February. Before he vanished, McCasland—the former commanding officer of the Air Force Research Laboratory at Wright-Patterson Air Force Base—appeared to take hiking boots and his wallet with him. A .38-caliber revolver in a leather holster was also unaccounted for, though there is no evidence he took it with him the day he disappeared. Among the things he left at home were his mobile phone, corrective eyeglasses, and fitness tracking devices.
McCasland’s past links to To The Stars, Inc., a company co-founded by Blink-182 musician Tom DeLonge that studies unidentified aerial phenomena, have supercharged online speculation. But 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.
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.
One of the highest-profile cases on the list has already been resolved. On April 29, the FBI conclusively determined that Massachusetts Institute of Technology professor Nuno Loureiro, a leading nuclear fusion researcher who was shot and killed outside his Brookline, Massachusetts, home in December 2025, was murdered by Cláudio Manuel Neves Valente acting alone out of personal spite. Investigators said Valente, a former engineering classmate of Loureiro’s from the same Portuguese university program two decades earlier, had nursed decades-old grudges. Valente also carried out a mass shooting at Brown University one day before killing Loureiro, leaving two students dead and nine wounded.
White House Signals Serious Concern
President Trump elevated the issue the week of April 20, telling reporters he had just emerged 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, calling the situation “pretty serious stuff” and noting that “some of them were very important people.”
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.” The FBI formally announced Tuesday it would spearhead the investigation, coordinating with the Department of Energy (DOE), the Department of Defense, and state and local law enforcement. Secretary of Energy Chris Wright confirmed on Fox News Sunday that the 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.”
Congress Demands Answers
The House Oversight Committee has launched its own parallel investigation, formally requesting briefings from the Department of Defense, the DOE, NASA, and the FBI regarding the “disappearance and death of individuals with access to sensitive U.S. scientific information.”
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.”
NASA has said it is cooperating with investigators. However, NASA spokesperson Bethany Stevens stated that “at this time, nothing related to NASA indicates a national security threat.”
The Department of Defense went further, telling 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.” The House Oversight Committee’s letters gave all relevant agencies a deadline of April 27 to provide a staff-level briefing.
More Questions Than Answers
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 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.
The “week and a half” timeline President Trump floated in mid-April for clarity on the cases has come and gone, with no public announcement from the White House about what, if anything, the coordinated review has found.
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.