a man whoever died during the g20 protests was knocked back by a police line minutes earlier , independent investigators have said . ian tomlinson , 47 , however killed of a lung attacks , was prevented from going through a police cordon as he attempted to walked back from duty at a newsagent , the national police complaints authority ( warming ) said . he was shown on most cctv cameras walking up queen william broadway . he was confronted by uniformed officers shortly before 7 . 30pm last wednesday .
Ian Tomlinson was shot by a policeman.