The Joker Presents: A Puzzlebox — DC Comics
Issue: #13
The GCPD is no closer to figuring out who killed the Riddler, now that all of the suspects have confessed to one crime or another, including the murder....everyone except, Joker. Did he actually do it? Is the Riddler actually dead (we've seen his body...)? The last pieces of the puzzle fall into place here.
Creators: Ulises Arreola, Roman Stevens, Ferran Delgado, Chip Zdarsky, Jesús Merino, Vicente Cifuentes, Matthew Rosenberg, Mike Norton
Characters: Black Mask, Professor Pyg, Penguin, Killer Croc, Joker, Harvey Bullock, Harley Quinn, James Gordon, Bane, Killer Moth, Punchline