Capone was not very bright when it came to school. He has been referred to as one of the most ruthless men of all time Stockdale Even with that kind of influence hard to believe that a once soft spoken, intelligent kid from a good family would grow up to run a major city with blood, bullets, and booze.
This may vary depending on your settings. Capone rose to infamy as the leader of the Chicago outfit during the prohibition era.
He was in the Five Points Gang, who were known for their violence. The most notorious gangster of all time, known as Al Capone, was the most powerful mob leader of his era.
After serving six-and-a-half years, Capone was released in to a mental hospital in Baltimore, where he remained for three years. Yes, prohibition did stop a lot of people from consuming alcohol. He did spend some time among the street gangs in Brooklyn, but aside from occasional scrapes, his gang activities were mostly uneventful.