. >> reporter: weeks since american services and voice recognition software helped them find jahadi johnidiculous man and this was a man involved in be heading several captives and aid workers and journalists people who could not defend themselves and had not gone to fight. he became the aims of an organization which tore through iraq and syria as much of the world looked on in disbelief. the question is being raised as to what if anything the british securities knew of him but neither they or the police would comment. this organization which routinely hears complaints from muslims about their lives in britain did know him and he told them he had been repeatedly harassed by the security services who blocked him from returning to kuwait where he was born. the man who knew him described him as a beautiful person enraged as his treatment by british authorities. >> this is a problem we have here, we created here in the uk an environment in which the security agencies can act with impunity and destroy the lives of young people. without any recourse to being able to challenge them in an effect