A former federal cop assigned to the U.S. Mint in Philadelphia admitted stealing $2.4 million in "error" coins.

William Gray, 64, of North Wildwood, N.J., admitted in federal court that he took the $1 presidential coins, all missing edge lettering, and sold them to a California coin dealer. Gray pleaded guilty to theft of government property and income tax evasion, said U.S. Attorney Paul Fishman.