A woman who killed her husband by pouring boiling oil over his head and stabbing him 16 times was jailed for life yesterday after being found guilty of murder. It was the third attempt to prosecute Li Suet-ping, 50, after two earlier juries were discharged when they failed to cope with the horrific nature of the evidence. The jury of seven women and two men heard that Sui On, 50, died after the flesh on his upper torso was badly burned when Li dumped five catties of boiling corn oil over him. The prosecution said Sui On was stabbed 16 times around his neck and back and was also injected with insulin. When police found his body in a compartment under Li's bed three days after the murder, they discovered she had also wrapped his head in 20 layers of plastic cling wrap and a shopping bag. Li's defence counsel, John Halley, said the January 5, 2001, killing came after Li snapped following 20 years of physical and verbal abuse by her husband. Mr Halley said the gruesome attack was also proof that Li had not planned to kill her husband. However, prosecutor Richard Donald described Li's actions as deliberate and planned, with forensic evidence indicating Sui On had been asleep on the family sofa when boiling oil was poured over him. He claimed the murder was Li's attempt to stop another woman taking away her husband, as Sui On had told her he had a younger lover. In his summing up, Mr Justice Gareth Lugar-Mawson told the jury: 'If you conclude that she was provoked, then she is not guilty of murder but guilty of the lesser offence of manslaughter.' The jury took only 75 minutes to arrive at an eight-to-one decision that Li was guilty of murder.