File:Abdullah Tayseer CMaalouf IDComp.png

Top, Abdullah Tayseer, or Issa, aged 11-19, from Homs or Palestine, beheaded by fighters of (US-backed) Nour al Din al-Zenki

bottom: Carol Maalouf, pro-opposition media activist (original source and veracity unclear)

Sources:
 * https://www.alaraby.co.uk/english/news/2016/7/21/boy-beheaded-by-syrian-rebels-was-19-year-old-regime-fighter?utm_source=twitter&utm_medium=sf
 * http://www.joshualandis.com/blog/boy-beheaded-zinki-fighters-abdullah-tayseer-ehsani2/ (comments #3 and 5, ref. link to http://janoubia.com/wp-content/uploads/2016/07/carol.jpg)