Victor Zsasz (Earth-2899)

"They say you are not mortal...they say you can't die. How much you wanna bet I can make you wish you could?"

- - Zsasz

Victor Zsasz is a homicidal serial killer who based himself in New York City, killing people for Carmine Falcone as his living until he started working for the Scarecrow.

Sent to Arkham
After murdering multiple civilians through the city at the behest of his boss,, leaving tally marks in his body as a sign of how many people he slain, Victor Zsasz was sent to prison.

Assistant District Attorney Rachel Dawes attempted to sentence Victor to a life penalty, but Arkham Asylum renewed psychiatric Doctor Jonathan Crane testified in court that Zsasz couldn't receive such penalty as he was legally insane, and thus should be sent to Arkham Asylum in order to receive the proper medical and psychological treatment, where he would be rehabilitated. In fact, Crane used Zsasz, as well as multiple other Arkham Asylum inmates to fabricate his fear-inducting toxins which he was selling to Ra's al Ghul in order to flood New York with it.

Battle of Brooklyn
Three days later, Zsasz, alongside all of Arkham's inmates, was released from his cell by Doctor Crane, now known as the Scarecrow, in order to ensue chaos in Brooklyn, which was flooded with the fear toxin by Ra's al Ghul and his League of Shadows. During the confusion caused by the toxin, Zsasz targeted Rachel Dawes and a young boy, David, in order to add them for his "mark collection" and have his revenge. However, he was stopped by Batman right on time to save their lives, being knocked out.

After the toxin was repelled, Crane arrested and Ra's al Ghul dead by the combined forces of Batman and Sergeant James Gordon, Zsasz and the remaining Arkham inmates were returned to the Asylum.

Equipment

 * Knives: Zsasz holded two pairs of knives which he used to murder his victims and carve their death counts over his body. He used them while attempting to kill Rachel Dawes and David only to be stopped by Batman. He would also use it to dissect the body of a victim and fight against the Daredevil before being taken out.