Robert Xie was arrested at his home on May 5, 2011. He pleaded not guilty but there was enough evidence to charge him for the murder of five victims.
During the trial, it was revealed that before he migrated to Melbourne in 2006, he was an ENT doctor in China. In Melbourne, he tried to open a restaurant but failed and he relocated to Sydney.
Robert was embarrassed when it came to his in-laws who were more successful than him, which was one of the motives behind the murder. But the other reason was that he was sexually attracted to Brenda. Brenda finally told investigators that Robert had been molesting her even before the murders and once she was in his home it only got worse.
At the trial, it was revealed Robert told an inmate that he had murdered the family in the early hours of the morning, after sedating his wife so that she wouldn’t know he was missing. Robert had four trials and he was finally found guilty for the murder of the five people and sentenced to five consecutive life sentences in prison. This would be without the possibility of parole.
At his sentencing on 12 January 2017, Brenda said, “I do not even know how to begin to express how the murder of my immediate family have impacted my life – there are not enough words to describe the pain and suffering caused me and those around me.”
She went on to say, "To this day, my biggest regret was not hugging (my father) and telling him I loved him, to say thank you for being an amazingly loving and caring parent. It has been seven-and-a-half years since I have lost my family. That's seven-and-a-half years without a loving mother, seven-and-a-half years without a loving father." While Brenda would do anything to have her family back, it's shocking how others wanted to get rid of their parents.
In February 2021 Robert lost an appeal. His wife Kathy still believes he was wrongfully accused. Kathy's words are, “He is a loving and caring family man.” According to a report by the Daily Mail, she said, “He is innocent. We believe that he is innocent. We keep fighting for him.”