Jo Frost on Killer Kids

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On 25 April 2011, in a small community in Nottinghamshire, Daniel Bartlam murdered a woman with a hammer.

Her name may have faded from view in the 21st Century, but there was a time when Mary Bell was the most notorious person in Britain.

Here, we look back at some of the most notorious child criminals who've been caged in the UK over the past decades.

There is nothing more shocking than the murder carried out by a child.

Super Nanny Jo Frost explores one of the most shocking crimes in British history - a mother's murder at the hands of her child

A look at the brutal murder of an 11-year-old boy with Cystic Fibrosis back in 2006, where the murderer is his 14-year-old classmate named Michael Hamer.

Parenting expert Jo Frost explores the psychology of child murderers, starting with Daniel Bartlam

Parenting expert Jo Frost examines the case of a child obsessed with serial killers, who stabbed two strangers to death in Colchester in 2014