In his last protest march, Martin Luther King Jr. led a parade of demonstrators down Beale Street in Memphis, lending his support to striking sanitation workers. After a few young black men started breaking storefront windows, the indiscriminate police response killed one suspected looter and injured dozens of protesters.
Under a legal theory blessed by the U.S. Court of Appeals for the 5th Circuit, King could have been held liable for the unanticipated harm that ensued from that March 1968 protest, even though he neither directed nor advocated vandalism or violence. On Monday, the U.S. Supreme Court declined to review that decision, which threatens to chill the exercise of First Amendment rights by exposing protest leaders to crushing civil liability based on conduct beyond their control.
