Final answer:
An adolescent serving as a gunman for Al Capone would have been involved in illegal activities under Capone's bootlegging empire in Chicago during the Prohibition Era. Capone's criminal operations included bootlegging, gambling, and murder, which garnered him significant wealth but eventually led to his conviction for tax fraud.
Step-by-step explanation:
During the Prohibition Era, adolescent gang members were employed by crime lords like Al Capone to carry out various illegal activities. Al Capone, also known as "Scarface," was the notorious leader of the Chicago Outfit or Chicago mafia. His extensive criminal empire included activities like bootlegging, gambling, and even murder, earning him over $100 million annually. Known for controlling the liquor trade in Chicago and for his violent methods of eliminating competition, Capone's organization's income was cleverly concealed through money laundering in various front businesses. Despite his initial public support, as some likened him to a modern-day Robin Hood, especially when he funded Chicago soup kitchens during the Great Depression, Capone's criminal activities and violence led to his downfall. Ultimately, he was convicted for tax fraud and served time in prison, including at Alcatraz.