Syrian rebel eats human flesh along with reciting 'Allah o Akbar' (God is great)

Syrian rebel eats human flesh along with reciting 'Allah o Akbar' (God is great).
Are they really Muslims or there is something wrong with this satanic gesture?

Let's see what Islam says about eating human flesh.

Quran says:

[5:1]- believers, fulfill your obligations. it is lawful for you (to eat the flesh of) the beast among cattle other than that which is recited to you, hunting is forbidden while you are on pilgrimage. allah decrees what he will.

[5:3]- you are forbidden (to consume) the dead, blood and the flesh of swine; also flesh dedicated to any other than allah, the flesh of strangled (animals) and of those beaten, that which is killed by falling, gored to death, mangled by beasts of prey, unless you find it (still alive) and slaughter it; also of animals sacrificed on stones (to idols)...

[16:115]- these things alone he has forbidden to you: what is already dead, blood, the flesh of swine, what has been offeredup to other than allah. but to whoever is forced to eat any of these, neither desiring nor wanting to transgress, allah is forgiving, merciful.

[2:173]- he has forbidden you the dead, blood, and the flesh of swine, also that which is invoked to other than allah. but whoever is constrained (to eat) any of these, not intending to sin or transgress, incurs no guilt. allah is forgiving and the most merciful.

As it can be vividly seen, in the first vessel the allowed flesh is mentioned, there is no human one there. However, it was pretty obvious, but we want to show in the major reference (i.e. Quran). In the other listed vessels, it is explicitly ordered that it is forbidden to eat flesh of an already dead animal. Even for allowed animals, for example cow, it is forbidden to eat its flesh if you find it dead. Therefore, it is obviously forbidden to eat human flesh and if somebody does it, he/she commits a big sin no matter who is he/she and you can't consider them as a Muslim.

You can download the clear clip from this link: http://zohur12.persiangig.com/video/z6VA.mp4/download?d2aa

PS: The video clip is really disgusting, please if you can't watch it, do not download it.