They were then sold for just over $1m last November to Wen Lu, whose sister Sylvia Lu is a Barfoot and Thompson real estate agent and has a long-running dispute with Wang.
His first trial at the High Court in February was aborted. The jury was told the deaths happened after a bitter marital dispute between Wang and his former wife Michelle Chen.
Wang said he was trained in a form of tai chi martial arts known as "long boxing" and was able to turn the tables against the two men who he says surprised him while he was in bed with a woman.
Wang is facing a retrial at the High Court in August.