A 26-year old man who died in an M4 car crash has been named.
George Bairstow, of Englefield Green in Surrey, veered off the road between Maidenhead and Wokingham on Wednesday.
His silver Land Rover Freelander ended up in a field 50 yards from the carriageway between junctions 8/9 and 10.
The St John Ambulance volunteer was cut free from the wreckage by firefighters and taken to the John Radcliffe Hospital in Oxford but later died of his injuries.
Len Bamber, Regional Director for St John Ambulance London, said: "George was a dedicated volunteer with St John Ambulance, from providing life saving help at events to training people in first aid, and so much more.
"He had a passion for first aid at his very core, and was devoted to helping people in their times of need. He will be sorely missed.
"Our thoughts are with George’s family, his friends, and all of those within St John Ambulance who knew him."
An inquest into Mr Bairstow’s death is due to take place on April 24.
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