Following in his father's footsteps, Zito became an amateur boxer and fought in New York Golden Gloves while working manual labor. In 1980, after assisting the bodyguards of actor Robert Conrad at a motorcycle convention, Zito began his own bodyguard agency. Named Charlie's Angels Bodyguard Services, Zito initially provided protection for actress Lorna Luft and later was hired by her half-sister Liza Minnelli. The actress recommended Zito's service to her plethora of celebrity acquaintances, allowing Zito to quickly develop contacts throughout Hollywood.