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Officers in chemical protection suits were called to the couple's home after Kibuuka drank pesticide
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A man has been found guilty of murdering his wife with a sledgehammer and knife after drugging his children.
George Kibuuka, 48, killed 40-year-old Margaret at their home in Richville Road, Shirley, Southampton, in 2009.
Kibuuka, who admitted the killing but denied murder due to diminished responsibility, then stabbed himself and drank pesticide but survived.
At Winchester Crown Court Mr Justice Royce said Kibuuka would be jailed for life and serve a minimum of 16 years.
It took jurors five hours to reach a verdict.
Kibuuka had also denied administering a stupefying drug to three of his children so they would not witness the attack, by putting sleeping tablets into their trifle and fizzy drinks.
Jurors found him guilty by a majority verdict on the charge of murder, and by a unanimous verdict on all other charges.
Earlier in the trial, the court heard part-time carer Mrs Kibuuka had filed for divorce, claiming her husband had been violent towards her and had had sexual relationships with two of her sisters, with one giving birth to Kibuuka's child.
Mrs Kibuuka had complained to police about her husband's violence and emotional abuse in the weeks before her death.
Sentencing Kibuuka the judge, Mr Royce, said: "Your wife was, by all accounts, a wonderful mother and appears to have been an exceptional wife.
"You however embarked on a sexual relationship, first with one of her sisters, and then on a longer sexual relationship with another of her sisters who gave birth to one of your children.
"So far as divorce proceedings were concerned you were angry at her pursuing them."
He said the killing had been "clearly planned" and "cold and calculated" and stemmed from his anger at the divorce.
"This was a terrible savage killing of a gentle and loving mother."
In a statement after the verdict, Mrs Kibuuka's family said: "May Margaret's soul rest in peace.
"She was a good mum, our sister, and a best friend to everyone.
"We will not forget her she will always be in our hearts.
"Everyone who knew her found her an exceptional person full of kindness and warmth."
This article is from the BBC News website. © British Broadcasting Corporation, The BBC is not responsible for the content of external internet sites.
Officers in chemical protection suits were called to the couple's home after Kibuuka drank pesticide Related stories
A man has been found guilty of murdering his wife with a sledgehammer and knife after drugging his children.
George Kibuuka, 48, killed 40-year-old Margaret at their home in Richville Road, Shirley, Southampton, in 2009.
Kibuuka, who admitted the killing but denied murder due to diminished responsibility, then stabbed himself and drank pesticide but survived.
At Winchester Crown Court Mr Justice Royce said Kibuuka would be jailed for life and serve a minimum of 16 years.
It took jurors five hours to reach a verdict.
Kibuuka had also denied administering a stupefying drug to three of his children so they would not witness the attack, by putting sleeping tablets into their trifle and fizzy drinks.
Jurors found him guilty by a majority verdict on the charge of murder, and by a unanimous verdict on all other charges.
“This was a terrible savage killing of a gentle and loving mother”
Judge Mr Justice Royce Mrs Kibuuka had complained to police about her husband's violence and emotional abuse in the weeks before her death.
Sentencing Kibuuka the judge, Mr Royce, said: "Your wife was, by all accounts, a wonderful mother and appears to have been an exceptional wife.
"You however embarked on a sexual relationship, first with one of her sisters, and then on a longer sexual relationship with another of her sisters who gave birth to one of your children.
"So far as divorce proceedings were concerned you were angry at her pursuing them."
He said the killing had been "clearly planned" and "cold and calculated" and stemmed from his anger at the divorce.
"This was a terrible savage killing of a gentle and loving mother."
In a statement after the verdict, Mrs Kibuuka's family said: "May Margaret's soul rest in peace.
"She was a good mum, our sister, and a best friend to everyone.
"We will not forget her she will always be in our hearts.
"Everyone who knew her found her an exceptional person full of kindness and warmth."
This article is from the BBC News website. © British Broadcasting Corporation, The BBC is not responsible for the content of external internet sites.