much of those videos. at the same time, they arrested three brooklyn men. stoking concerns about recruitment at home, now they're identifying jihadi john. a 26-year-old british citizen born in kuwait. one british rights worker says he embraced it after interacting with british security. >> muhammad is someone i spent a great deal of time with. over two years, because he came to me complaining initially of harassment that he had faced at the hands of security agencies. every single turn, the u.k. security are there blocking and stopping him without bringing any kind of criminal case against him. and eventually after this