Salvatore "The Boss" Maroni is a fictional character appearing in comic books published by DC Comics, usually as one of Batman's first enemies, and among the toughest gangsters in Gotham City. Maroni is most famous for being the one who scarred Harvey Dent, setting the stage for the young attorney's transformation into Two-Face.
Maroni's first Pre-crisis appearance was in Detective Comics #66 (August 1942) as "Boss" Moroni, a mobster on trial for the murder of a man named "Bookie" Benson. Harvey Dent is the prosecutor at the trial. He calls Batman as his first witness. During Batman's testimony Maroni calls Batman a liar, leading Dent to show his proof: Maroni's lucky two-headed silver dollar found at the scene with Maroni's fingerprints on it. Enraged, Maroni throws a vial of acid at Dent, horribly disfiguring him and transforming him into the insane gangster Two-Face.
Two-Face later shoots and kills him, after which Two-Face surrenders and voluntarily goes back into police custody.
By presumed coincidence, in All-American Comics #25 (April 1941), a criminal named "Killer" Maroni blinds Dr. Charles McNider, who subsequently becomes Doctor Mid-Nite of the Justice Society of America. In Adventure Comics #76 (July 1942), Starman (Ted Knight) battles the Moroni Gang (note variation in spelling).
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