10 Comic Plot Twists That Were Hiding In Plain Sight
2. Alberto Falcone Is Not The True Holiday Killer
The case of the Holiday Killer in Batman: The Long Halloween is maybe the best example of how Batman can work well as a whodunnit detective story.
It's a weird one, though, because the truth - that Gilda Dent was the initial Holiday Killer, and that Alberto became a copycat killer because he liked the prestige the mystery murderer was getting - is told to us from the very beginning. During interrogation, Calender Man tells Batman that 'She'll be killing again... No one knows who she is and already he is making a name for himself. Or herself'.
While this seems like the criminal toying with the detective, he's actually explicitly telling Batman that there are two killers - just in a confusing way that doesn't make this information apparent until later in the comic, where his cryptic clues seem all too obvious to us in retrospect.