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Three teenagers have been convicted of killing a police officer during a desperate attempt to evade capture.
PC Andrew Harper was dragged for a mile behind their car, after he tried to stop the group towing away a quad bike, stolen from outside a house in west Berkshire.
The 28-year-old suffered horrific injuries and died at the scene near the A4.
The driver, Henry Long, 19 and his passengers Albert Bowers and Jessie Cole, both 18, had denied murder. Long earlier admitted manslaughter and his co-accused were found guilty of the same offence by a jury at the Old Bailey in central London.
