An English-speaking child, and a British-sounding militant who brings to mind ISIS' previous propagandist, ' Jihadi John ,' appear in the latest, chilling propaganda video from ISIS.<br />In the video, which has not yet been independently verified, the child says that the group will kill "kuffar' - nonbelievers - "over there," referring to the West, while the adult threatens and insults British Prime Minister David Cameron.<br />The speaker's accent and dress bring to mind the previous - masked - face of the terror group, Mohammed Emwazi, otherwise known as "Jihadi John."<br />Emwazi was understood to have been killed in Raqqa late last year in an airstrike which specifically targeted the Briton.