Joseph "Joe" Valachi

Joseph "Joe" Valachi was a notorious American mobster who became a federal witness, revealing details about the Mafia's inner workings in the 1960s. Before turning informant, he was involved in organized crime in New York City. His testimony provided the first detailed inside look at the Mafia, including its structure, rules, and operations, which helped law enforcement understand and combat organized crime. Valachi's revelations marked a turning point in the fight against the Mafia and contributed to the public's knowledge of its secretive activities.