A man from Doncaster is preparing for the London Marathon to raise money for a boy with an aggressive form of cancer.
Thomas Cammack, from Selby, was diagnosed with Neuroblastoma last year. He has had induction chemotherapy, surgery, high dose chemotherapy with stem cell rescue and radiotherapy.In January, though, scans showed a tumour on his brain. His best chance now is going to New York for lifesaving treatment.
John Sedgwick from Doncaster is hoping to raise thousands of pounds for Thomas' treatment by taking part in the London Marathon.
Around five hundred children have set off on a 3 mile walk to raise money for a little boy who has a rare form of cancer. Thomas Cammack suffers from Neuroblastoma. His parents needs to raise half a million pounds to take him to America for life saving treatement.