Two men were yesterday convicted of the murder of a 19-year-old brothel time-keeper who was killed in front of eight police officers. Li Man-tik was fatally stabbed on August 12 last year after running from a Mongkok hotpot restaurant following an argument between triad Chan Sik-hung, nicknamed 'Bleating Sheep', and rival Mok Tsan-ping, alias 'Country Bumpkin'. Mok, 39, was convicted of murder after a 16-day trial before Mrs Justice Verina Bokhary at the Court of First Instance. Co-defendant Cheng Po, 23, was also convicted of murder, while See Cheung-shun, 21, was found guilty of manslaughter. Mok and Cheng, who had denied murder, received automatic life sentences, while See will be sentenced tomorrow. Key witness Chan, a 40-year-old former pimp described by the prosecution as 'no angel', said the fracas started after he had argued with Mok at the hotpot restaurant earlier that day. Chan, testifying under immunity, said a mainland prostitute had called him asking if he would be her pimp. She had been giving him directions to the restaurant, where she was waiting, when Mok grabbed the phone from her and started abusing Chan. Chan said that when he arrived, he and Mok started quarrelling. 'He [Mok] said: 'Do you know who I am?',' Chan said. 'He said: 'I am Country Bumpkin of Shui Fong [a triad group]'. 'I said: 'Do you know who I am? I am Bleating Sheep of Luen Ying Sze.' Mok had sworn at him and said: 'I give you one hour to blow the whistle.' Chan said he had got the victim involved by calling him to request help in rallying men. Later, two rival groups assembled by Chan and Mok returned to the restaurant. After a stand-off, Chan's group fled, with their rivals in pursuit. In the resulting fracas, Li was chopped in the back, punched and hit. Prosecutor Ian Lloyd said the murder occurred in front of eight police officers either on or off duty in the vicinity of Tung Choi and Soy streets, Mongkok. The attackers were arrested after an officer drew his service revolver to stop them. Li died of stab wounds shortly after.