She has appeared at Sheffield Crown Court today with co-accused Brandon Machin, 39, after pleading guilty to the killing of Tristan and Blake Barrass, aged 13 and 14 respectively.
The pair have also admitted conspiracy to murder six of the female defendant's children, including Tristan and Blake, and five counts of attempted murder.
This is the shocking timeline of the murders.
This is the shocking timeline of the murders.
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