A convicted Swedish jihadist, Osama Krayem, is on trial in Stockholm for war crimes related to the 2014 killing of Jordanian pilot Maaz al-Kassasbeh, who was burned alive by the Islamic State (IS). Prosecutors allege Krayem, already serving lengthy sentences for his involvement in the Paris and Brussels attacks, participated in the brutal act, as evidenced by a now-infamous propaganda video. The trial, which could lead to a life sentence, is set to continue until June 26.