A SEX pervert who killed a young student while making a pornographic video also filmed a one-year-old boy being indecently assaulted, it was revealed yesterday. The shocking 20-minute tape came to light when police raided businessman Hon Leung-fong's home following the death of 21-year-old Elaine Luk Yee-ling. The video shows Hon, dubbed the chloroform killer, encouraging a 'girlfriend' to perform sex acts on the baby. Prosecutor Pat Loftus told the High Court: 'The child is heard to be crying throughout two-thirds of the tape.' Police do not know the identity of the woman or baby or when the film was made. The tape was among 28 home videos seized from Hon's Tuen Mun flat during an investigation into Luk's death. Hon, 33, and his mistress Phoebe Wong Yim-ping, 28, killed computer student Luk with chloroform while making a pornographic film. Hon, who is serving 15 years for manslaughter, admitted one charge of indecent conduct towards a child. He denied a second count of indecent assault on a male and the charge was left on file. After hearing the facts, Mr Justice Leonard suggested viewing the tape to establish how the child had been affected. But defence counsel Gary Plowman QC, said the boy was so young he was unlikely to have suffered any psychological damage. He told the judge he did not want the tape shown in public as Hon's case had already generated 'sufficient excitement and publicity'. Mr Plowman added: 'This is a crime where there is no real victim. 'The child was extremely young. It's highly improbable that the child would be affected psychologically in any way from an experience of this nature. The woman involved was clearly a willing participant.' He asked the judge to be lenient in view of the 'crushing' sentence Hon is already serving for manslaughter. In August, Mr Justice Leonard jailed the businessman for 81/2 years and Wong for seven years after they pleaded guilty to manslaughter. But last week, the Court of Appeal nearly doubled the sentences following public outcry. Hon is now serving 15 years and Wong 12 years. Mr Justice Leonard said he would adjourn sentencing Hon for indecent conduct until he knew the Court of Appeal's reasons for increasing the manslaughter sentences.