One video purportedly shows Nour al-Din al-Zinki fighters taunting the boy before his death The sister of a boy filmed being beheaded by Syrian rebels has disputed a claim by a pro-government Palestinian militia that he was not a fighter. The Liwa al-Quds (Jerusalem Brigade) said Abdullah Issa was just a 12-year-old from a poor refugee family who lived in a rebel-held area of Aleppo.