Five Prominent US Scientists Vanish or Die in Quick Succession, Raising National-Security Questions About High-Stakes Research

To the point

Five prominent U.S. scientists in high-stakes fields—William Neil McCasland, Monica Jacinto Reza, Nuno Loureiro, Carl Grillmair, and Jason Thomas—have disappeared or died in a short span, prompting national-security concerns and speculation about secret programs, with no single investigation linking all the cases.

Mystery of Five Missing Scientists Sends Chill Across America. Three are Dead. And One Troubling Link is Now Under Scrutiny in DC
substack.com

Mystery of Five Missing Scientists Sends Chill Across America. Three are Dead. And One Troubling Link is Now Under Scrutiny in DC

As officials search for Retired General William Neil McCasland, online sleuths link his case to the missing NASA aerospace engineer Monica Reza, who disappeared in 2025.