murdering civilians in Syria: regime and armed groups

So there is a report and headline about Syrian regime shelling that killed civilians.  That would not surprise me and it won't be the first time that the Syrian regime killed civilians.  But the story of threats against Christians by Syrian armed groups is always buried in stories, as in the NYT: "On Friday, a group of rebel fighters posted a video in which they threatened to shell Christian villages unless residents forced government loyalists to leave. Local church leaders have pleaded for peace and an end to sectarian strife."  Here is more on the threats to Christians.