Sal Maroni

Salvatore "The Boss" Maroni is a leader of organized crime in Gotham City and an antagonist to the Batman. During a criminal trial, he was responsible for throwing acid at district attorney Harvey Dent and turning him into Two-Face.

Background
Salvatore Vincent "The Boss" Maroni grew up in the priveleged Maroni crime family, headed by his father Luigi "Big Lou" Maroni. Maroni was one of toughest gangsters in Gotham City, and is shown in his prime to be the second most powerful mobster in Gotham City after Carmine Falcone, The Roman. He is largely credited with being the mobster to throw acid at Harvey Dent, and turn him into Two-Face. Maroni owned an Italian restaurant called Maroni's that he used as a front for his criminal activities.

Involvement

 * He appears in the headline 'Penguin Marches to Prison' where he throws acid in Harvey Dent's Face.