Answer
Pizzagate, a false conspiracy theory alleging a child sex trafficking ring was operating out of a Washington, D.C. pizzeria, was spread by Mike Cernovich in 2016. Cernovich, a far-right conspiracy theorist and media personality, played a significant role in promoting the baseless claims and spreading misinformation about the pizzeria and its owner, leading to harassment, threats, and even a shooting incident at the establishment.