A string of deaths and vanishings in which scientists associated with classified programs in the United States have been implicated has initiated a joint federal inquiry that has created concern both among national security officials and in scientific quarters.
According to reports by CNN, the inquiry has been initiated by the Federal Bureau of Investigations with cooperation from the US Department of Energy, military officials, and local police. These cases have included scientists associated with organisations such as the Jet Propulsion Laboratory, Los Alamos National Laboratory, MIT, and Caltech.
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Cases span multiple institutions
Out of the reported incidents, the death of Caltech astrophysicist Carl Grillmair, who was a participant in the space observation initiatives such as NEOWISE, was discovered at his California home.
The second incident relates to the disappearance of Monica Reza, an aerospace engineer, and the director of JPL, who is still missing after her hiking session in a forest in Los Angeles in June 2025.
US Air Force Major General William Neil McCasland has been missing from this year for reasons unknown, as he left some of his belongings behind when disappearing. Additionally, two employees, Melissa Casias and Anthony Chavez, have gone missing in different instances at the Los Alamos National Laboratory in 2025.
Congressional scrutiny and security concerns
The Republican-led House Oversight Committee has initiated a parallel review, seeking briefings from federal agencies including the FBI, the Department of Defense, the Department of Energy and NASA.
Officials are examining whether any connection exists between the cases, particularly given the individuals’ links to high-security research environments.
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No confirmed links yet
In spite of the doubts, security analysts cited by CBS News have urged against jumping to conclusions in the absence of conclusive proof. The attacks are spread over several years and target different people holding different positions.
There is no evidence to suggest that the attacks are linked directly, and investigations are still ongoing.
Nonetheless, the latest events have raised questions about the vulnerabilities of employees working in research institutions, particularly in light of the ongoing efforts by federal bodies to establish whether there is a pattern.
