Did 'Harley Quinn' just redeem the Joker? 

You know that laugh. You're more than familiar with the signature pairing of a dramatic red lip with a purple suit and a green coiffure. But do you really know the Joker? The latest episode of Harley Quinn, entitled "Joker: The Killing Vote," has us wondering if Gotham's clown prince of crime might be on his way to becoming a...