Pupils from Nottingham Girls' High Junior School are releasing a single this week in memory of their friend Rose Whittle who died in March this year after a long fight with a rare form of cancer.
The girls are hoping to raise money for the Cancer Ward at Nottingham Children's Hospital where Rose, who won a national award in recognition of her bravery, received treatment.
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An man has been found guilty of murdering and dismembering his wealthy friend and dumping the torso in a suitcase at the roadside.
He wore a mask from the film Saw and threatened staff.
Senior Investigating Officer Detective Chief Superintendent Mark Payne said patients suffered as a result of Patersons greed and arrogance.