Two teenagers who drifted into the company of the 'brutal and wicked' murderers of a 15-year-old boy were sentenced to a training centre yesterday after the judge said he was prepared to give them a chance. Mr Justice Michael Wong Kin-chow was concluding the sentencing of 14 teenagers charged for their roles in the death of Luk Chi-wai. Wong Sze-shing, 17, was convicted of manslaughter by a jury on January 27 while schoolgirl Yuen Kit-yee, 18, was convicted of assault and unlawful disposal of a corpse. They will be detained for a maximum of three years. Wong was the only one in the group who tried to stop the fatal beating of Chi-wai on May 14, 1997, but he had delivered a kick to Chi-wai's head that made him culpable, the Court of First Instance heard. Yuen was the girlfriend of one of the six jailed murderers. She acted as a lookout during the disposal of the corpse and gave money to help her friends buy ingredients to dispose of it. 'She was obviously under the direction of her boyfriend and the older male friends, which explains why she acted as she did,' said defence lawyer Thomas Yiu. 'She is determined to sever her links with these unsavoury characters.' Barrister Frederic Whitehouse, for Wong, said he had shown bravery as the only group member to try to stop the torture that led to Chi-wai's death. 'He isn't a bad boy. This young man came under the influence of the gang and joined it because of his friendship with girlfriend Lau Pui-yee,' Mr Whitehouse said. His girlfriend was among five teenagers freed upon conviction for assault because they were sentenced to time served - the 21 months spent in custody after being arrested. Another teenager, Shek Sze-kin, 18, pleaded guilty to manslaughter and was jailed for seven years. The judge said it was better for Yuen, and for society, that she remain in a training centre. He told Wong: 'I also consider your role in this case . . . as comparatively minor. 'This shows that you were not as wicked and brutal as the others,' Mr Justice Wong said. Mr Whitehouse said he was 'disappointed' with the verdict in Wong's case and an appeal was likely.