"Non-state armed groups have also carried out abuses against persons in their custody, including torture and other ill-treatment and summary killings. Amnesty International has documented such abuses by IS, Jabhat al-Nusra and other non-state armed groups and found that some of them amount to war crimes.24 The UN Commission of Inquiry has also found that, in the context of detention, IS, Jabhat al-Nusra, and other non-state armed groups have committed war crimes such as torture and murder, while IS has also carried out crimes against humanity.25
Nevertheless, Amnesty International’s assessment is that the vast majority of detention-related violations since 2011 have been carried out by the Syrian authorities." First, notice that designation of "other armed groups", which means that other than ISIS and Nusrah, there are other groups that Western governments and media refer to as "moderate" and for that reasons we are not going to name them to protect the image of the "revolution". Also notice that "Nevertheless" as an opening of the last sentence is intended as a qualification for the war crimes by rebels. Western media and Western human rights organizations are like US media and US presidential elections: they are so biased for Hillary that they are not even trying to be fair or even-handed in coverage.