The dreaded terrorist outfit ISIS is reported to have beheaded over 20 of its fighters in full public view for trying to flee a war zone in Iraq's Mosul city. The dissidents were arrested at a checkpoint in the vicinity of Mosul on Friday evening. After being identified as fighters who have left their positions at the fighting front in western Mosul, they were transferred to the Sharia Court for prosecution.  The Sharia Court decided to behead the dissidents on charges of treason and the execution was carried out in central Mosul in front of hundreds of people, mostly ISIS members and commanders in a bid to terrorize those ISIS members who might have planned to  leave their posts in the war-torn region.