https://www.techdirt.com/articles/20201102/17371145635/supreme-court-rejects-appeals-courts-revival-anonymous-cops-stupid-lawsuit-against-blm-activist.shtml

Early last year, the Fifth Circuit Court of Appeals (which has more than its fair share of inexplicable decisions) released an inexplicable decision. The appeal arose from a lower court's dismissal of an injured cop's lawsuit against multiple parties over injuries he sustained when a protester threw a chunk of concrete at him.

The pseudonymous cop sued a number of entities, including "Black Lives Matter," a Twitter hashtag, and activist DeRay Mckesson. His claims against the social movement and the social media sorting mechanic didn't survive. But the Fifth Circuit Court felt it was plausible -- under Louisiana state law -- that Mckesson was somehow responsible for the injuries sustained by the cop.