A man has been charged with manslaughter following the death of a 56-year-old, 15 months after he was attacked in Milton Keynes.
Francis Collins, of Milton Keynes, sustained serious head injuries in an attack on 30 July, 2008.
He was in a coma and died in October 2009. Police said they re-opened the case following his death.
A 22-year-old, from Milton Keynes, has been remanded to appear at the town's magistrates on 27 October.