Damn good question, cause all we see is Arabs chopping off the heads of other Arabs and journalists and there is a lot of speculation that those beheadings themselves were false engineered propaganda.
In a February 5, 2015 interview with the Lebanese NBN TV channel, Fatah Central Committee member Sultan Abu Al-Einein said that he considered the conduct of ISIS to be “an extension of the Zionist enterprise.” “Where did this love story come from?” he asked.