Mafia
Around then, several gangs in New York became one large gang, the Mafia, as their leaders realized that more money could be made if the gangs worked together. Giuseppe Masseria and Salvatore Maranzano were two men who wanted to become the boss of the newly made New York mafia. Fighting, known as the "Castellammarese War" broke out between the two men, and many of their soldiers were killed. Masseria's underboss was Lucky Luciano, a man who also wanted to control the New York Mafia. He met with Masseria's enemy Salvatore Maranzano and plotted to kill Masseria, Luuciano's own boss.