Allen Pace III, a security inspector at the Dunbar Armored facility in Los Angeles, used his insider knowledge to pull off the largest cash heist in U.S. history. Fired from his job the day before the robbery in September 1997, Pace recruited five childhood friends and devised an elaborate plan, memorizing security routines, bringing a camera to scope out the vault, and even sketching chalk diagrams of the building in parking lots during planning sessions. On the night of the heist, they tied up employees, broke into the vault, and escaped with nearly $18.9 million in untraceable cash.