The term CAPONE NEMESIS refers to the four main rivals of the infamous gangster Al Capone. These include NESS (4 letters), Eliot (5 letters), Nitti (5 letters) and Als (3 letters). NESS was a federal agent named Elliot NESS, who was tasked with bringing down Capone's criminal empire. Eliot was a lawyer and prosecutor named Eliot NESS, who was also instrumental in bringing down Capone. Nitti was a mob boss named Frank Nitti, who was Capone's successor after his imprisonment. Als was a rival gang leader named Alphonse 'Al' Scarface Capone, who was Capone's main rival in the Chicago underworld.