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Joanna Dennehy murder case: 'My sister is a monster'

12 February 2014 Last updated at 17:52 GMT

The sister of triple killer Joanna Dennehy told the BBC she hoped her sister would never be released from prison.

Maria Dennehy said her sister had become estranged from her, despite having come from a normal and loving family.

"I could never picture her doing anything so monstrous" she told the BBC's Ed Thomas.