who is cyrus gold in gotham
Cyrus Gold was born some time around the early to middle 19th Century. Although accounts of his origins differ, the tale is fairly consistent that he was a Gotham City gentleman of ill repute who came to his death in Slaughter Swamp, and resurrected some years later as a horrible creature.
In the one-shot Faces of Evil: Solomon Grundy (March 2009) by Geoff Johns and Scott Kolins, Cyrus Gold returns to life in Slaughter Swamp, as he was prior to becoming Grundy. He returns to Gotham City, but is shot by police after attacking a charity worker. In the police morgue, he transforms into Solomon Grundy. Grundy is once more an unintelligent monster, repeating the opening line of the nursery rhyme. A week later, having retreated to the sewers, he has a fight with Killer Croc.