On this day, Dec. 12, in 1982, two masked men with a shotgun punched a hole through a tar paper and wood roof from an armored car company headquarters in the Bronx, N.Y., and staged the largest cash robbery in U.S. history at that time, stealing an estimated $11 million.

It turned out to be an inside job.

It took place on a weekend in which millions of dollars of receipts were in storage at Sentry Armored Car headquarters awaiting transportation to banks on Monday.

Sentry guard Christos Potamitis, 25, let in his associates drop in from the ceiling, then handcuffed himself to make it appear that he had been overpowered.

Five men were later arrested, including one who was found by FBI agents in Puerto Rico sunning himself at a hotel pool.

All five were convicted and sent to prison.

Authorities only recovered $1.5 million.

-- Scott McCabe