A mother with a severe mental illness killed her two children after being allowed unsupervised access despite the warnings of their father, a court heard yesterday.

{mosimage}Vivian Gamor, 29, was detained indefinitely after admitting two counts of manslaughter at the Old Bailey.

The children’s father, Jimi Ogunkoya, blamed social services for their deaths after he was encouraged to let them stay with her despite bizarre behaviour that had led to her being sectioned.

“I obeyed the law and let them go,” he said in a victim impact statement read out in court. “I wish I had not done that.

“The system that I obeyed has frog-marched my children to their deaths. They assessed her and found nothing wrong. This is pure negligence, which will not be tolerated.”

Sentencing Gamor, Judge Peter Rook told her: “On the face of it, this terrible tragedy could have been avoided if you had not been allowed unsupervised access and the children’s father’s grave concerns had been given weight.”

Gamor, from Hackney, east London, bludgeoned 10-year-old son Antoine with a claw hammer and suffocated daughter Kenniece, three, with cling film in January.

Jonathan Rees, prosecuting, told the court that she then dialled 999 and told the operator: “I kind of lost it, I snapped.” When police arrived they found the bodies of her children lying in her bedroom, with a blood-stained hammer lying next to Kenniece, and Antoine crouched in a defensive position between the cupboard and the wall.

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