Complex sentence: DiLapi was an instrumental cog in family boss Anthony Corallo's illegal control of the garment district in conjunction with Thomas Gambino, who was the son of Carlo Gambino and the son-in-law of Thomas Lucchese.
Split into simpler sentences: DiLapi was an instrumental cog in family boss Anthony Corallo's illegal control of the garment district. DiLapi worked with Thomas Gambino, the son of Carlo Gambino and son-in-law of Thomas Lucchese.