According to Reuters, Daesh [ISIL] has killed 50 people in Syria since the start of 2015.
The victims were sentenced to death for charges of insulting God, spying, or being an enemy of the so-called "Islamic State."
The Syrian Observatory for Human Rights said the ultra hardline group killed them mainly through beheadings and shootings.
This number includes the Jordanian pilot Muath al-Kasasbeh, who was burned alive after having been captured in December 2014 when his plane crashed into Raqqa, the Daesh stronghold in Syria.