McClausand, who holds a Master of Science in aeronautical engineering from MIT and a Doctor of Philosophy in astronautical engineering, joined the Air Force in 1979 and served for 34 years.
His disappearance comes just weeks after Caltech astrophysicist Carl Grilmair was shot dead at his remote home in California.
Hhhhmmmmm.
When I was a few weeks postpartum with my second child, I bundled us both up and waddled into the Fairfax County Circuit Court to testify against a man who had accosted my then-toddler daughter and I in a public bathroom while I was heavily pregnant.
When I arrived I was brought… pic.twitter.com/8H41nhP1Gs— Lyndsey Fifield (@lyndseyfifield) October 30, 2025