ELDER OF ZIYON: Video of Al Qaeda public execution in Syria - of other rebels

According to the Syrian Observatory for Human Rights, this video shows an Al Qaeda group in front of a large crowd in Alatareb in the northern Idlib province.

The Islamist group, which apparently is from Iraq, executed the leader of a rival, apparently moderate Syrian opposition faction along with six of his men. 

The crowd is very happy. 

The execution begins at about 1:38.