A jury has heard how Jiagen Pan, 45, was arguing with his former wife Linjin Cui at her Springfield Lakes home in August 2009 when she slapped him and called him a ‘son of a bitch’ and ‘a loser’, reports a major newspaper.
Pan has pleaded not guilty to murdering Ms Cui. He admits killing her but claims he was provoked.
Pan's defence barrister Soraya Ryan said Cui told her client: "You're not a man; you never satisfied me as a man; you never brought me to orgasm."
At those words, Pan ‘lost control’ and put his hands around her throat, Ryan told Brisbane Supreme Court as she opened her client's defence case.
Ryan said Pan then realised his ex-wife was not breathing.
After choking her to death, Pan bought several circular saws from a Bunnings store, dismembered her body and then took her remains to his Woodridge home.
Pan then began building a cavity in a hallway cupboard using concrete and police arrived as he tried to entomb her body.