A Malaysian doctor has been accused of filling a yoga ball with carbon monoxide gas which gradually leaked from the exercise equipment, poisoning his wife and child to death.
Khaw Kim-sun, a 53-year-old anaesthetist, has pleaded not guilty in his Hong Kong trial for the murder of the two family members, who were discovered dead in a parked car in 2015, according to RTHK news.
Kim-sun had indicated to colleagues at the university where he worked that two gas-filled balls would be used for an experiment. He also suggested that he planned to exterminate rodents at his home. Prosecutors allege that he instead hatched a plan to gas his wife, because she refused to grant him a divorce.
Kim-sun is accused of placing one of exercise balls in the back of a vehicle driven by his wife, Wong Siew. A Hong Kong court heard that Siew and her 16-year-old daughter were found dead inside a yellow Mini Cooper on May 22,2015.
