A suspect in the Paris and Brussels terror attacks has been identified by Belgian police as having been among a group of ISIS extremists who burned a Jordanian pilot alive in a cage. Osama Krayem, a Swede of Syrian origin, has been held in Belgium since 2016 and could face war crimes charges over the murder of Maaz al-Kassasbeh, whose grisly death was filmed and put online in an incident that came to symbolise some of the worst excesses of ISIS. Krayem is suspected of playing a key role in the jihadist cell behind the attacks in Paris, which killed...