Complex sentence: Di Bernardo was the main target of a Federal investigation into child pornography, ahaving, having been convicted he was awaiting sentence on pornography charges when he was murdered by fellow associates of Gotti, his body was never found.
Split into simpler sentences: Di Bernardo was the main target of a Federal investigation into child pornography. Hwas awaiting sentence when he was murdered by fellow associates of Gotti, the body was never found.