How many more wasted lives? Tom Wroe: Dead at 18, murdered by one of the Afghan police Britain is trying to train

Afghan recruit had begged for help, claiming he had hurt his foot on a patrol He shot the two soldiers with an assault rifle as they went to offer first aidPte Wroe and Sgt Thursby were from 3rd Battalion, The Yorkshire RegimentFresh claims that the gunman was related to a Taliban leader