Fatherhood for the man dubbed `` Iron Mike '' is framed against his own experience as a shy kid turned street fighter growing up in the Brownsville area of Brooklyn . Tyson found fame as the youngest heavyweight world champion in the age of 18 . The American now says : `` I did n't like the person I was back then '' Tyson , who spent time in jail , says being responsible is now his biggest fight . At one , Mike Tyson hopes to use his life lessons to help young boxers .
Tyson found fame as the youngest heavyweight world champion in the age of 18 . The American now says : `` I did n't like the person I was back then '' Tyson , who spent time in jail , says being responsible is now his biggest fight . At one , Mike Tyson hopes to use his life lessons to help young boxers .