PC Andrew Harper's widow has written to the Prime Minister to ask for a retrial after her husband's teenage killers were cleared of murder.
Lissie Harper had been married to PC Harper for just a month when he was killed by Henry Long, 19, Jessie Cole and Albert Bowers, both 18, as they tried to steal a quad bike.
PC Harper, 28, was dragged for more than a mile along the country lanes of Berkshire when he became entangled in a tow rope attached to the teenagers' getaway car.
An Old Bailey jury acquitted all three defendants of murder on Friday, instead convicting Cole and Bowers of manslaughter. Long had previously pleaded guilty to the same charge.
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