Joker Movie Spoilers
Everything You Need to Know About Joker if You Refuse to See It in Theatres
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Arthur shows up at Murray Franklin's show dressed in his Joker best and asks Murray to refer to him with that soon-to-be-infamous moniker. While the show is on the air, Joker admits to killing the Wall Street guys and blasts the world for not caring about him. He then pulls out his gun and shoots Murray as payback for embarrassing him on air.