salman abedi? >> that his parents immigrated from lib ya that they've returned to libya. he has a brother i believe taken into custody for questions. that he was, i think beginning to self-radicalize. i think the broader question as a former prosecutor, is there a cell in place that could have been driven by isis or is this simply again a lone wolf self-radicalizing individual. but again i say, the damage and destruction was just as evil. >> what do you know about his travel, did he travel anywhere for training for example, or was he self-radicalizing online back in manchester? >> that's something we're looking at right now, social media, his travel.