Editor's note: This story was originally published on Feb. 6, 2020. Listen to Sam Borden discuss the story of the heist on ESPN Daily here.
Jason Costello takes a key from his pocket. He turns it in the lock of safe deposit box No. 899 at the Eastern Bank in Saugus, Massachusetts. He pulls the box off the shelf and carries it into a nearby room.
Al Zani and Shawn O'Neil crowd around him. The three men are New England law enforcement to their core: Costello is a young special agent in the FBI's Boston office with a reputation as a skilled interviewer.