[Steve Van Doorn]

Black eye is likely slang for a devout Muslim. They bang their head on the floor so much they get a black spot in the middle of their forehead (literally.) Many of the news forums are not showing terrorists forehead (to protect Islam IMO)

look at the picture of Islams latest Christmas present(chérif chekatt terrorist):

[Steve Van Doorn]

These black spots, black eye, third eye or whatever you want to call it is a badge of honor within their circles.