Do the First Amendment and NAACP v. Claiborne Hardware Co. foreclose a state law negligence action against a protest leader for injuries from an unidentified person's violent act?

QUESTION PRESENTED Do the First Amendment and this Court’s decision in NAACP v. Claiborne Hardware Co., 458 U.S. 886 (1982), foreclose a state law negligence action making a leader of a protest demonstration personally liable in damages for injuries inflicted by an unidentified person’s violent act, when it is undisputed that the leader neither authorized, directed, nor ratified the perpetrator’s act, nor engaged in or intended violence of any kind? i