peter neumann, welcome back to the newshour. is there any doubt that this man is the man in those terrible videos? >> i don't have any doubts. i think confirmations have come from different angles, and i read today that a member of the u.s. intelligence services even though he didn't want to be named, confirmed the identity. so i'm pretty certain it is the man. >> woodruff: what is it about him that you see and his journey from being born in kuwait, moving to london. what is it about that journey that stands out to you that may be distinctive or like what you've seen happen to others who have become radicalized? >> so there's a lot of pieces of the puzzle that we do not have yet. it's certainly not unusual for someone from fairly middle-class background who went to university to become radicalized. it is a fallacy to think that you necessarily have to be poor and uneducated to become attracted to that kind of ideology. what we often observe with people like that is that wherever they come from, they do not feel that they have a

according to british researcher peter neumann... >> he countered their likes their mentions, their follows and what would turn out to be true is that ahmad musa jibril is like an astonishing percentage of foreign fighters. >> reporter: according to research, 60% of west everybody foreign fighters were following him on facebook, favoriting his tweets and retweeting his messages. last year a federal judge heavily restricted jibril's ability to use social media. as a result, his accounts have gone dormant and yet his facebook page has grown from 211,000 likes last year to 245,000 today. >> there were hundreds, maybe even 1,000 messages i got from social media. >> reporter: jibril declined our request for an interview. his probation ends in one month. without new charge he's free to go back online without restriction. he's toned down his rhetoric. >>that suggests maybe he's changed man. some aren't convinced. >> there's nothing to suggest that he has changed his views. he's toned them down because he realizes that if he doesn't tone them down, they will come after him. >> reporter: and this is

peter neumann and clint watts, thank you. >>> the trial of aaron hernandez.y he was laughing during witness testimony. we'll take you live to the courthouse. >>> former nfl star aaron hernandez wrapped up court today with what appeared to be a laugh. look at this video. arguably odd, obviously, for someone on trial for murder. and this came on a day of very technical testimony about cell phones. cnn's national correspondent susan candiotti joining me from outside that massachusetts courtroom. susan, the prosecution showed hernandez's phone records from the days that were surrounding odin lloyd's murder. what stood out to you? >> reporter: i'll tell you one thing that stood out. there were a lot of text messages. we also learned something about who saves text messages the company in question here sprint testified that because there are so many of them the system can't handle it and so they actually do not preserve text messages that you and i send that we all send. so unless you happen to save it you don't get it. now, in this case the prosecutors had some of

. >> peter neumann, michael wise thank you very much. we see the most recent arrest in brooklyn., his mother took his passport what a tough situation for the parent. you don't like what's happening to him. the a alternative is to tell the authorities and he gets arrested? there needs to be a path of discourse that helps of parents achieve the right goal. >>> a new generation of parental nightmare, right, chris? >>> given all of this that's going on shutdown showdown can congress get past the politics to keep the all-important department of homeland security operational? you just got a big bump in miles. so this is a great opportunity for an upgrade. sound good? great. because you're not you you're a whole airline... and it's not a ticket you're upgrading it's your entire operations, from domestic to international... which means you need help from a whole team of advisors. from workforce strategies to tech solutions and a thousand other things. so you call pwc. the right people to get the extraordinary done. ♪ ♪ the road. it can bring out the worst in people. but the m-class scans