 Gotti quickly became one of the crime family's biggest earners and a protégé of Gambino family underboss Aniello Dellacroce, operating out of the Ozone Park neighborhood of Queens.Early in his criminal career and following the FBI's indictment of members of Gotti's crew for selling narcotics, Gotti began to fear that he and his brother would be killed by Gambino boss Paul Castellano for selling drugs.As this fear continued to grow, and amidst growing dissent over the leadership of the crime family, Gotti organized the murder of Castellano in December 1985 and took over the family shortly thereafter, leaving Gotti as the boss of what has been described as America's most powerful crime syndicate, and one that made hundreds of millions of dollars a year from racketeering, hijacking, loan sharking, drug trafficking, bookmaking, prostitution, extortion, pornography, illegal gambling and other criminal activities.