In February 2003, an ambitious Italian man named Leonardo Notarbartolo was arrested for heading a ring of Italian thieves. They were accused of breaking into a vault two floors below the Antwerp Diamond Center and making off with at least $100 million in loose diamonds, gold, jewelry, and other spoils. Until this event, the vault was thought to be impenetrable, and the Antwerp Diamond heist has gone down in history as the “heist of the century.”