Understanding Drug Use and Addiction. Many people don't understand why or how other people become addicted to drugs. They may mistakenly think that those who use drugs lack moral principles or willpower and that they could stop their drug use simply by choosing to. In reality, drug addiction is a complex disease, and quitting usually takes more than good intentions or a strong will.
1 Less than two months later, Capone was arrested in Philadelphia by local police for carrying concealed weapons and was sent to jail for a year.  When he was released in 1931, Capone was tried and convicted for the original contempt of court charge. A federal judge sentenced him to six months in prison.
That's why Al Capone ended up spending much of his Alcatraz sentence in the Alcatraz hospital. Eventually, having served six years and eight months of his 10-year sentence, with the remainder of the time taken off as good time for good behavior, Capone's felony tax evasion sentence was completed.