October 28, 2021 Three years ago, Robert Bowers opened fire inside a synagogue in Pittsburgh, Pennsylvania, murdering 11 people and devastating the close-knit community of Squirrel Hill. Inspired by antisemitic, anti-immigrant and white supremacist views, Bowers posted his bigoted thoughts on Gab, a site known as a haven for extremists, and then acted on his words, committing history’s deadliest assault on the American Jewish community. In the immediate wake of the attack, and in the…