A butcher who used his skills to chop up the body of a woman he had just killed was sentenced to life yesterday for a murder the judge called the worst he had encountered. A plastic chopping board was placed under the body of the victim as Lo Yau-fuk systematically set to work with a chopper. The former Cheung Chau butcher showed no emotion as the High Court jury read out a guilty verdict for the murder and dismemberment of 34-year-old insurance agent Nancy Chan Lan-kiu. 'This is the worst case I've ever come across,' Mr Justice Wally Yeung Chun-kuen said. 'You targeted the victim in order to get her money and you killed in order to silence her. 'You cut up her body into parts and threw them down a hillside in a remote area to cover the trail of your crime. And all in just a few hours.' Chan, an acquaintance of Lo's live-in lover, went to Mui Wo, Lantau, with Lo on February 6 last year, believing he wanted to buy insurance from her. Within an hour of arriving at a rented holiday home she was dead - shot through the head with a single bullet. Lo, 28, and his alleged accomplice, Cheung Moon-keung, 30, laid the body in a bathtub under a running tap, slit her throat in two places and drained the body of blood, the court heard. Lo then set to work with the chopper. A forensic report described the cut edges as 'clean'. 'It was a very professional job, by someone who knew what they were doing,' a police source told the South China Morning Post. The body parts were bound together with wire and dumped on a hillside near Po Lin Monastery. The police believe Chan may have been raped before she was killed, but they were not able to produce enough evidence because of the state of the body. The murdered woman's family, who received a ransom demand for $300,000 after her disappearance, consoled each other as they left the court. Chan's elder brother said she was dead 'because they miscalculated and thought my sister was rich'. Mr Justice Yeung had special praise for the chief investigating police officer, Senior Inspector Chan Lok-wing of the New Territories North regional crime unit. Within eight days of the murder, Lo, known as 'Fat Boy' to his friends, had been arrested. Lo, who denied he killed Chan, was also sentenced to 12 years for robbing Chan of $3,000 and two years for preventing the lawful burial of a corpse. His alleged accomplice Cheung was jailed for life on March 25 for the Lantau murders of sweethearts Yung Tze-lung, 21, and Chan Chin-yee, 16. Cheung blamed the September 1995 killings on Lo.