The pistol owned by the notorious Prohibition-era gangster Al Capone, which he nicknamed “sweetheart,” is once again up for auction, where it is expected to sell for $2 to $3 million.

Richmond Auctions announced the upcoming auction of the handgun nicknamed "Sweetheart" by Al Capone. The handgun that was used for personal protection by Capone is a Colt 1911 .45 semi-automatic ...