Al Capone (a.k.a. 'Scarface'), one of the most famous American gangsters, rose to infamy as the leader of the Chicago mafia during the Prohibition era. Before being sent to Alcatraz Prison in 1931 from a tax evasion conviction, he had amassed a personal fortune estimated at $100 million dollars and was responsible for countless murders.
While prohibition was intended to decrease crime and violence it actually served to create the opposite. Gangsters like Al Capone took advantage of the basic economic principle of "supply and demand" and made hundreds of millions of dollars bootlegging alcohol in major cities along the east coast.
Crime: Al Capone represented the gangsters of the 1920s, convicted of tax evasion and allegedly conducting the St. Valentine's Day Massacre. He is an example of the gangs and crimes surfacing during this time period.