According to law enforcement , Junior Gotti headed the Gambino crime family on behalf of John J. Gotti .
John Angelo Gotti III or `` Junior '' Gotti ( born February 14 , 1964 ) is a New York City mobster who during much of the 1990s led the Gambino crime family of Cosa Nostra for his imprisoned father John J. Gotti , who died in 2002 .
John A. Gotti