Final answer:
Al Capone became the bodyguard and trusted factotum of Johnny Torrio in his early twenties in Chicago. Capone later took over the Chicago Outfit, and while he garnered a Robin Hood-like image, he was eventually incarcerated for tax evasion.
Step-by-step explanation:
In Al Capone's early twenties, when he moved to Chicago, he became the bodyguard and trusted factotum of Johnny Torrio. Torrio was a prominent figure in the city's organized crime scene during the Prohibition era, which saw a surge in activities like bootlegging, gambling, and other illegal enterprises.
Al Capone eventually led the Chicago Outfit, amassing wealth from various illicit activities and gaining notoriety as one of the era's most infamous gangsters. He was known not only for his criminal enterprise but also for the perception by some that he was a modern-day Robin Hood, especially with his soup kitchens during the Great Depression. However, despite the vast empire he built, Capone was eventually brought down by tax evasion charges and served time in the notorious Alcatraz prison.