Hong Kong Doctor Kills Wife, Daughter With Gas Filled Yoga Ball

A Hong Kong doctor killed his wife and 16-year-old daughter using a yoga ball filled with carbon monoxide, a Hong Kong court has said.

Prosecutors said Khaw Kim-sun left the inflatable ball in the boot of a car where the gas leaked out and killed them in 2015.

Mr Khaw has pleaded not guilty to two counts of murder.

A post-mortem examination of his wife and eldest daughter revealed they had died from carbon monoxide poisoning.

Police found a deflated yoga ball in the back of the yellow Mini Cooper in which their bodies were discovered.

Prosecutors told Hong Kong’s High Court that Mr Khaw killed his wife deliberately because he was having an affair and she refused to grant him a divorce.

But they said they are not sure he wanted to kill his daughter, as he allegedly told her to stay at home to complete homework.

Eyewitnesses said they saw Mr Khaw, an associate professor at Hong Kong’s Chinese University, filling two balls with carbon monoxide, reports said.

He told colleagues he was going to kill rabbits with the gas, but reports say he contradicted himself by telling police he wanted to use it to get rid of rats at his home.

The trial continues.