A DISABLED man stabbed his handicapped wife to death in a jealous frenzy with a pair of scissors because she was having an affair with his friend, the High Court heard yesterday. Chan Kwok-leung denied murdering teacher Kau Chun-ling, 33, on October 23 last year at his home in Ap Lei Chau, but admitted manslaughter on the grounds of provocation. Senior Crown Counsel Paul Madigan told Mr Justice Saied that it appeared to be a classic case of a crime of passion. Kau was stabbed more than 40 times. Mr Madigan said Chan, 45, a clerical assistant for the Hospital Authority, married Kau in August 1991. She had suffered from polio and had to walk with a steel frame. Chan had been in a motorbike accident in 1969 which led to the eventual amputation of his lower right leg. They had begun their courtship at swimming classes, but their marriage was not happy. Chan had a jealous nature and he argued with her over former boyfriends. Within four months they had separated and Kau was living with her mother. She also met Cheung Kwai-choi, who was blind in one eye and partially sighted in the other, at swimming classes, and in June 1992 they became more friendly. Mr Cheung had sex with Kau twice in the weeks before her death, counsel said. The court heard that even though they were separated, Kau used to visit Chan, buy him food and do housework. Mr Madigan said matters came to a head in mid-October when Chan learned of his wife's affair with Mr Cheung. The following day, Chan told police Kau visited him unexpectedly and sat on the bed doing some handicraft using scissors. They had argued and, on impulse, Chan picked up the scissors and attacked her in a frenzy, cutting his hand in the process. His wife was certified dead on arrival at hospital, and Chan had a badly cut hand and needed surgery to reconnect two severed tendons. In mitigation, Patrick Lim urged the judge to put Chan on probation. He said he had been in custody for 12 months already and he had to live the rest of his life with the knowledge that he had killed his wife. If Chan received a custodial sentence, he would lose his job and his pension, punishment which he said because of his disability and difficulty in finding another job, was grossly disproportionate to what he had done. Chan was not predisposed to violence, it was the build-up which led to him losing self-control, Mr Lim submitted. He said Kau was Chan's first love and he was so devastated he would not contemplate having another intimate relationship. Mr Justice Saied adjourned sentencing pending a probation report.