Dapper Don's Don Juan pal is new boss of the family Troubled mafia clan has put smooth talker in charge, says former G-man By JOHN MARZULLI DAILY NEWS STAFF WRITER John (Jackie Nose) D'Amico John (Jackie Nose) D'Amico (l.) had been a constant companion and confidant of John Gotti. Meet the new John Gotti. John (Jackie Nose) D'Amico, the Dapper Don's longtime sidekick and confidant, has emerged as the new acting boss of the Gambino crime family, law enforcement officials told the Daily News. D'Amico, known as a dapper dresser himself with a gift for gab...