Male nurse stole tranquillisers, muscle relaxants to ease masseur's pain - but she died after injection A male nurse killed his lover after he injected her with a cocktail of stolen muscle relaxants and tranquillisers to relieve her pain, a court heard yesterday. Lau Pong-fat, 37, was sentenced by Mr Justice Thomas Gall to two years and six months in prison after pleading guilty to the manslaughter of 31-year-old Li Yim-neung. Mr Justice Gall said he accepted Lau had an honest but misguided belief in the beneficial effects of atracurium, a muscle relaxant. 'Your intention was honourable in the sense you wished to help,' Mr Justice Gall said in the Court of First Instance. '[But] I am horrified you should use such drugs without satisfying yourself as to their nature and effect.' He adopted a starting point of three years and nine months after taking into account a related case involving a man who gave his ill wife heroin to relieve her pain, and reduced it by one-third because of Lau's guilty plea. Prosecutor Peter Power told the court Lau led police to a room in Chit Wing Building, Kau Yuk Road, Yuen Long in March 23 last year at 11.45am, where the body of Li was discovered on a bed. 'After sleeping for 30 minutes I got up at 9.30am and found that she was dead. I was frightened and so I immediately left there,'' Lau told the officer. Lau, a nurse in the intensive care unit at Princess Margaret Hospital, had injected Li with atracurium and haloperidol, a tranquilliser, which were later detected in her blood. Defence barrister Andrew Raffell said Lau had injected the drugs at Li's request after she complained of various illnesses and muscle pain caused by her work as a masseur. A post-mortem examination found a needle mark in the back of Li's right hand and no other external injuries. A pathologist report said that Li could have developed muscle paralysis and respiratory failure after receiving the injection, and without help to breathe would have died. Mr Power said the pathologist concluded there was a significant dose of atracurium administered to Li before her death. Mr Power told the court Lau was married when he started a relationship with Li, after meeting her in late 2001 in a Yuen Long sauna where she worked. Mr Power said Lau had stolen the drugs he injected into Li from Princess Margaret Hospital where he had worked since 1998. Li had complained for two or three days before her death that she was unwell. Mr Power said although it was the first time Lau had administered atracurium to her, there had been 10 previous occasions where he had given her drugs at her request. Li's cause of death was listed as 'adverse effects of atracurium'', the court heard. Mr Power said Lau had been smuggling small quantities of drugs from the hospital over a period of time.