What is the origin of Killer Croc?
Killer Croc, is a fictional character in DC comics. He is a criminal, and thus, an enemy of Batman. Waylon Jones was born with a medical condition that is causing him to grow progressively more like a crocodile, hence his name. In the comics, his intelligence level has been portrayed differently, varying from competent schemer to simply a berserk monster. In another storyline that ran in Batman issues 521 and 522, Killer Croc was summoned by some strange paranormal force to break out of Arkham Asylum and make his way to the Louisiana swamps. Batman followed him there only to find that the mysterious force was actually the Swamp Thing, who offered Croc a place in the swampland where he could finally give in to his animal side and live free from human persecution. There he stayed, and Batman returned to Gotham City.