The al-Qaeda linked al-Nusra Front executed 11 men they accused of taking part in massacres against Syrian people, a video posted online showed. 
An unidentified man whose face is covered by a black balaclava is seen shooting the men, who are blindfolded and kneeling in a row, in the back of the head. As each man is shot, cried of "God is great" can be heard from off camera.
The sharia court for the eastern region in Deir al-Zor has sentenced to death these apostate soldiers that committed massacres against our brothers and families in Syria," the executioner said as he walked behind the men. He returned to shoot some men more than once to ensure they were dead. The man also says that the executed men were responsible for the massacre of civilians in Banias, two weeks ago.
It's the second execution style video to come out of Syria this week, after similar footage emerged from the Northern province of Raqqa, in which three blindfolded men were executed by a shot to the head.