Heath Ledger appears on screen in his role as the Joker in “The Dark Knight” after posthumously winning Best Supporting Actor at the 81st Academy Awards. (Gabriel Bouys / AFP / Getty Images) Missouri Highway Patrol backpedals on ‘Batman’-themed alert The Missouri State Highway Patrol told residents it was looking for the Joker, but the alert was not so serious. Jan 19, 2022 By Benjamin Freed