Police investigating the murder of an Australian-born retired lecturer in his Yuen Long home believe he might have been killed by someone he knew. The theory came after officers found no sign of forced entry at the home of Gordon Hutchings, 73, who lived on the ground floor of a three-storey house in Kam Hing Wai. 'The expatriate man was attacked inside his bedroom. It is possible that the victim was killed by a visitor he knew after he let [the visitor] enter into his apartment,' a police investigator said. 'We are told that the victim had no relatives in Hong Kong. We will study his background and talk with his friends and former colleagues.' Another police officer said: 'We will check whether he had a dispute with others at work or in his private life.' Hutchings, who was born in Australia and later became a British national, had been working part-time designing stage costumes at home following his retirement in August last year as a lecturer with the applied arts department of the Hong Kong Academy of Performing Arts. Police said Hutchings rented the Yuen Long unit after moving out of the academy's staff quarters. On Saturday, he suffered at least 10 stab wounds, mainly to the head, neck and chest. He was found by a friend inside his bedroom, lying on a blood-soaked mattress with a pillow over his head. Police said the door was open when his friend - a Hong Kong resident - arrived about 2.30pm. Police said the victim was killed in the early hours of Saturday. A pair of bloodstained scissors he used to make stage costumes was found in his bedroom. His unit appeared to have been ransacked and officers were still investigating whether any valuables or cash were stolen. Police found Hutchings' wallet containing bank cards and a small amount of British currency. Detectives returned to the scene yesterday to collect fingerprints and conduct further interviews. The academy's public relations manager, Susanna Chan Wan-sai, said Hutchings' former colleagues were saddened by the death and that funeral arrangements were being discussed.