A spurned policeman planned to die in front of his ex-lover, but her taunts drove him into a rage, psychiatrist testifies A policeman who knifed his ex-lover to death told a psychiatrist he brought the weapon to commit suicide in front of the victim so 'she would remember me forever', a court heard yesterday. John Tsui Chu-tin, 32, was on bail for stalking the victim, Ruth Chan Yin-cheung, 22, when he killed her. He has pleaded not guilty to murder. His offer to plead guilty to manslaughter on the basis of diminished responsibility was rejected by the prosecution. Psychiatrist Andrew Johns was testifying yesterday for the defendant. He told the Court of First Instance jury that two days before the killing on July 18, 1998, Tsui had watched a romantic movie which made him extremely unhappy. '[Tsui] told me that 'everyone is happy ... my dignity is gone',' Dr Johns said. He said that after the movie, Tsui thought about killing himself and brought a 30cm-long knife. Dr Johns testified that Tsui told him: 'I want to see her first. If I die in front of her, she would ... remember me forever.' The psychiatrist said that on the morning of the killing, Tsui said he woke up 'feeling the worst'' and said he showed up at Chan's front door. He begged her to talk to him about the baby she had aborted when they were still together. Dr Johns said Tsui told him Chan then said: 'Why are you not going to die? What makes you think this baby belongs to you?' The psychiatrist said: 'Tsui then said all the feelings of being angered, insulted and disappointed came to [him] at the same moment as though a bright light was shining ... and [he] could not breathe, everything in front of him was going around and around.' Tsui told him the memory was not clear, but he knew he had stabbed Chan. Dr Johns said up to that point, Tsui had not harboured any feelings of anger towards Chan. 'It would be understandable for any man [to be angered] if it was suddenly suggested to him that he was not the father of a baby. 'From the point of view of the defendant, that anger is more likely, given ... his depressed state.'' Dr Johns had previously told the court Tsui was deeply depressed after Chan broke off their relationship in January 1998. He had also chronicled Tsui's subsequent stalking campaign which included moving into her apartment block and calling her up to 30 times a day at work. The court has heard Tsui was on bail after being charged with stalking Chan when he killed her, five days before that trial was due to begin. An autopsy showed Chan died after suffering 36 stab and slash wounds, most of which were concentrated around her neck and chest. Dr Johns said Tsui had booked himself a hotel room only a few minutes' walk from Chan's flat. He said Tsui had given the hotel Chan's address as a point of contact 'because if I died, [the police] would go to her first' and he hoped she would feel bad. Dr Johns said the night before the killing, Tsui waited outside Chan's apartment. He also said by that stage, Tsui had not slept or eaten for two days. 'It takes a powerful thought in our mind to stop us' eating and sleeping, Dr Johns said. The trial before Mr Justice Louis Tong Po-sun continues.