Questions are being asked after a woman, who had been detained for the 2005 manslaughter of her own mother, was let free and went on to kill a stranger in the street.
Nicola Edgington was today found guilty of murdering grandmother Sally Hodkin with a knife in Bexleyheath in October 2011 as well as attempting to murder another woman, Kerry Clark.
But hours before the attacks, Edgington had phoned emergency services from a Woolwich hospital and warned them she was dangerous. Ronke Phillips reports.
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