A 10-year-old boy has been arrested over the death of a 79-year-old man who suffered a head injury in the Harehills district of Leeds, West Yorkshire police said.
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Legal action has been threatened against the Parole Board if it does not disclose the reasons behind its decision to release John Worboys.
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The Commons Public Accounts Committee (PAC) said at least £9 million has been squandered on a project that failed to deliver.