Charlotte - mum of Harry Dunn - in heartfelt plea to US diplomat's wife who was involved in the traffic collision that killed their son

The mother of a teenager killed when his motorbike collided with a car driven by the wife of a US diplomat is appealing for the woman to return to the UK for questioning. Charlotte Charles has urged her "as a mum" to come back, and speak to the police. 19 year old Harry Dunn died in August near RAF Croughton in Northamptonshire. Although the driver of the car told police she had no plans to leave the UK, she flew out with her family shortly afterwards. The woman is being protected by diplomatic immunity. She spoke to Stephen.