A LECTURER brutally stabbed his wife to death – after wrongly believing he was not the father of their children.
Robert Kerr attacked Xin Xin Liu (39) at their home in the upmarket suburb of Newton Mearns, near Glasgow.
The 39 year-old struck as his two sons slept upstairs – and went on to make himself a hot drink while Xin Xin lay dead.
A judge heard how the mum suffered more than 70 wounds during the horrific killing in April this year.
Kerr today faced a murder allegation as he appeared at the High Court in Glasgow.
But, prosecutors instead accepted his guilty plea to the reduced plea of culpable homicide on the grounds of his diminished responsibility.
It had been concluded that Kerr was suffering from “an abnormality of the mind” at the time of the fatal attack.
A group of Xin Xin's relatives were in court today. Some wept as the grim details of her death were revealed.
Police discovered Xin Xin lying on the kitchen floor with a knife still in her body.
After being held, Kerr then told officers: “I found out tonight they were not mine.”
Prosecutor Jane Farquharson said he had “suspicions” that a friend was the dad of his children.
But, Miss Farquharson told the court: “A paternity test recently carried out...has since confirmed that Robert Kerr is the biological father.”
Judge Lord Boyd today imposed an interim compulsion order for Kerr to remain at Carstairs.
The case was adjourned until November.
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