Complex sentence: A young businessman (Sam Christopher Chow) purchases the corpse, (which is the body of his great-great-great-grandfather), in order to give it a proper burial in Hong Kong.
Split into simpler sentences: A young businessman (Sam Christopher Chow) purchases the corpse. The corpse is revealed toto be the body of his great-great-great-grandfather and he intends to give it a proper burial in Hong Kong.