Replying...
Intro. Jerome Valeska is a young man who worked in a circus, who after being found guilty of murdering his mother was sent to Arkham Asylum, a place from which he escaped to join a group known as the Maniacs. However, after his murder he was revived by a group of fanatics so that he could spread chaos in the city... then he begins the search for his brother to kill him but ends up murdered. Then his brother Jeremiah Valeska follows in his footsteps, who is also a psychopath, calculating and murderer with goals of destroying Ghotam.

Jerome Valeska

@Osman