
(Wikimedia Commons; click to enlarge.)
I don’t think that the article really answers the question.
But it’s a sad story, in any case. And the problem is one that must be solved, mostly by the Muslim community. But governments in the West and elsewhere can’t simply sit back as if it doesn’t concern them:
http://www.ozy.com/true-story/why-2-normal-teens-joined-isis/61629