Look at the careful and mild language of Human Rights Watch regarding abuses by opposition armed groups

"Armed opposition groups appeared to have deliberately destroyed religious sites in mixed areas of Northern Syria, in November and December 2012, Human Rights Watch said following investigations in Latakia and Idlib governorates. An armed opposition group destroyed a Shia place of worship in Idlib governorate, and two Christian churches in Latakia governorate were looted. In all three cases evidence examined by Human Rights Watch suggests, and witnesses stated, that the attacks took place after the area fell to opposition control and government forces had left the area.  While some opposition leaders have pledged to protect all Syrians, in practice the opposition has failed to properly address the unjustified attacks against minority places of worship, Human Rights Watch said. The opposition also has failed to rein in gunmen engaging in looting and other criminal activities, like kidnappings. Human Rights Watch urged armed opposition groups to protect all religious sites in areas under their control and to discipline members who loot or kidnap."  The report ended by Human Rights Watch extending an apology for the armed groups for the mild report.