8 Mysteries Even Batman Couldn't Solve
6. The Hangman - Dark Victory
Following on from the events of the excellent Long Halloween, Jeph Loeb and Tim Sale returned three years later with the similarly great Dark Victory. Continuing on in the aftermath of the Holiday Killer, this time the mystery at play revolved around a cop-killing criminal known as the Hangman.
It would eventually be revealed that the Hangman was actually Sofia Gigante, but Batman himself wasn't able to figure that out.
Instead, it was Catwoman who did all of the heavy lifting on that front. Digging deep into the mystery of the Hangman and the Falcone family, Selina Kyle discovered that Sofia was this mysterious killer. Rather than having been left paraplegic after the events of The Long Halloween, Sofia had instead pretended to be wheelchair-bound throughout Dark Victory as a way to make her the last suspect for the murders seen throughout this tale.
For the Caped Crusader and Jim Gordon, they were unable to solve this riddle, and the puzzle of the Hangman was only solved by Selina. Well, that and the small matter of Sofia outing herself as the Hangman at the tale's close, where she reveals her identity as she tries to kill Two-Face.