Bruce Wayne of Earth -22, the Batman Who Laughs. On his world, the chemicals that originally transformed the Joker into the Clown Prince of Crime slowly began to kill him, inspiring a murderous rampage through Gotham City’s streets that ended the lives of Jim Gordon, Catwoman and many others.
Earth -22’s Batman finally stopped the Joker by killing him, but this final act released a unique strain of the Clown Prince of Crime’s famous toxin, which warped Batman’s mind and made Bruce Wayne just like the villain himself.
The transformation was complete; Bruce Wayne was now the Batman Who Laughs.
