[1] During Chau and Tse's interviews with the police, they admitted that after the murder, they chopped up the parents' dead bodies and cooked the remains with salt to make them look "like barbecue pork.
After returning to Hong Kong in 2010, he tried to commit suicide three times at home by burning charcoal, taking rat poison, and swallowing mercury.
[6] On 12 March 2013, five days after filing a missing persons report, the two Chau brothers heard from the police that there were no (departure) records of their parents leaving Hong Kong.
The brothers then created a Facebook page titled, "My missing dad and mom", and asked their friends and the public for any information that could link to their parents' whereabouts.
On 15 March 2013, a day after the interview, Chau and his friend, Angus Tse Chun-kei, were indicted for killing and dismembering Chau's parents in Tse's Tai Kok Tsui flat in the Hoi Hing Building, Kok Cheung Street.
Chau described his accomplice Tse as a "very powerful" man who covered Moon Siu's mouth from behind while slashing her throat.
[8][9] Chau returned to the Tai Kok Tsui crime scene four days after the incident, at the time when Tse already had all the body parts dismembered, salted, refrigerated, and demoisturized.
In those refrigerators, lunch boxes containing microwaved human flesh, and three bags containing chopped limbs and other body parts were found.
"[9] He blamed his parents for his failures in life, such as his father distracting his studies by watching television at a high volume, and his mother forcing him to practice the piano and humiliating him in front of a girl.
On 13 August 2014, High Court Deputy Judge Michael Stuart-Moore announced that the case would have to be restarted with a fresh jury of nine.
Chung stated that Chau had experienced many suicidal thoughts after dropping out of college, being rejected by women, and being unemployed, giving a possible psychological trigger for the murder.
[15] The consultant of Siu Lam Psychiatric Centre, Lui Sing-Heung, conducted an IQ test for Tse and Chau.
[12] The case was adapted into two episodes of the Chinese-language miniseries Stained (心冤; debuted 2017) produced by Fox Networks Group Asia and directed by Patrick Kong.