On this date in 1930, Tony Bonventre of the Greenpoint section of Brooklyn was found in the back seat of a car with four bullets in his head and chest. The police assumed that the murder was the result of a gambling feud due to the fact that three decks of marked cards were found on the dead man. Bonventre's record showed that he had been arrested for delinquency back in 1907 and again in 1917 for vagrancy.
It is also possible that Tony was a victim of the Castellemmarese war. He shared the same last name as Vito "the King" Bonventre*, who was the boss of the Castellemmarese mafia family and would himself be shot down in due time, and he was found just down the street from where "the King" lived.
* For more info on King Bonventre and the Castellemmarese war check out Gangster City