Get all the facts and figures about the island of Alcatraz, commonly known as "The Rock".

Sonny Barger helped mold the Hells Angels into a bloodstained blueprint for all outlaw biker clubs that followed.

When Bronx Capo John Gotti turned on boss Paul Castellano, the most powerful NY Mafia family changed forever.

Explore how the NYC Mafia in the 1990s used extortion tactics to impose a 'mob tax' on legitimate businesses.