Batman: White Knight stopped with a fist, i.e. Batman's methods. This led him to turn the Joker into a politician, using the character's intelligence and charisma to win the people of Gotham over. DC Comics had no problems with the ideas that Murphy had for the series such as changing the timeline in Batman's history. However, the adult content like nudity and profanity that Murphy had intended to include were not permitted. Murphy revealed that the Joker in "White Knight" has the real name Jack Napier, a callback to Tim Burton's 1989 "Batman" film where the Joker played by Jack Nicholson also shares
Batman: The Killing Joke purposely of rain falling on the ground, which symbolizes that nothing has changed except for the two parties' respect for each other. Though many people, fans and critics alike, have debated each of these theories, the ending was purposely left uncertain to allow each individual reader to decide what happened. The book explores Moore's assertion that, psychologically, "Batman and the Joker are mirror images of each other" by delving into the relationship between the two. The story itself shows how the Joker and Batman came to terms with their respective life-altering tragedies, which both eventually lead to their present lives