THE death of a masseuse who fell 28 floors remains a mystery after a coroner's jury returned an open verdict. The court heard that Chan Kam-yui, 27, was found on the second floor podium of a City One block in Sha Tin in the early hours of September 23 last year. The cause of death was multiple injuries. Chan Kam-yui's boyfriend, former policeman Chan Kwok-keung, 47, said they met about two years ago and he later moved in to share her 30th floor flat. Summing up the evidence, Coroner Warner Banks said there were three verdicts the jury could return: open verdict, death by suicide and a verdict in their own wording. He said the jurors could return a verdict of death by suicide if they were satisfied beyond reasonable doubt that Chan Kam-yui had taken her own life. The court heard a window in the flat was open and Chan Kam-yui's prints were on the window pane. A screwdriver was also there. Although Chan Kwok-keung's flight from the scene may have been suspicious, Mr Banks said there was insufficient evidence to support a verdict of unlawful killing. During the two-day inquest, the court heard Chan Kam-yui was depressed after she had lost a large sum of money on foreign currency speculation. Chan Kwok-keung said he fled from the flat because he knew he was suspected of involvement in a theft case dating back 10 years. The court heard he went into hiding but surrendered to police on September 26. Assisting Mr Banks in the case was coroner's officer Paul Madigan.