article_snippet: Both men had previously pleaded guilty to charges of preventing the lawful burial of Chau's father Chau Wing-ki, 65, and Chau mother, Siu Yuet-yee, 63.
article_snippet: Chau's parents, Chau Wing-ki, 65, right,  and Siu Yuet-yee, 62, left,  were chopped up and cooked with rice .
article_snippet: The court heard that Chau parents went with Chau on the morning of Henry Chau's parents to see Chau new home in Tai Kok Tsui.
article_snippet: Several days after they disappeared Chau Hoi-Leung wanted to raise the alarm, but Chau said the couple had travelled to mainland China on a visit.
article_snippet: Eventually Chau Hoi-Leung went to the police with the killer to report the police parents missing.
article_snippet: The court heard that Chau sent a Watsapp message to friends admitting killing Chau Hoi-Leung .
article_snippet: One of the friends reported a Watsapp message to police who arrested Chau and Chau friend Tse Chun-kei.
article_snippet: Chau told investigators that Chau wanted to kill Chau six months before the attack, but was convinced to take revenge on Chau parents instead by Tse.
article_snippet: Police believe that the couple were murdered and dismembered in Tse's flat, although Chau denied taking any part in the killing.
article_snippet: Police show the weapons used by Chau to kill his parents after Chau invited his parents round for dinner .
article_snippet: Prosecutors claimed that Chau and Tse discussed a range of methods of disposing of the bodies - including mixing the remains with cement and throwing them away as bricks.
article_snippet: Tse said the only reason Tse helped Chau is because Tse was afraid that Tse friend would kill Tse mother.
article_snippet: Chau first claimed that Chau did not kill his parents but only helped his friend dismember the remains.