Turns out he does have brainworms. Literally.
https://freethoughtblogs.com/pharyngula ... nfessions/
Some kind of vermiform parasite (maybe a tapeworm) hatched in his brain, ate some of the tissue, and then died there. And now he is a conspiracy theorist.
Remember folks: wash your hands before eating, and cook meat to a safe temperature. Or you might end up like RFK Jr.