from the article:
>>“But they also kill some of them whenever ISIS gets harshly attacked in a fight,” the former captive said. “Or sometimes they just kill so they can use it to boost the morale of their own fighters.”<<
The executions will continue until morale improves?
Filthy savages...
Frankly, I am surprised to hear that they even take and keep individual prisoners like this. Seems like they would just kill anyone getting in their way.