Joseph Valachi
Joseph "Joe Cargo" Valachi (September 22, 1903 – April 3, 1971), Italian American, also known as "Charles Chanbano" and "Anthony Sorge" was the first Mafia member to publicly acknowledge the existence of the Mafia. He is also the person who made Cosa Nostra (meaning "Our Thing") a household name.
Read more about Joseph Valachi: Career, Federal Testimony, Imprisonment and Death