HRW

"Mr. Houry was quick to point out that Human Rights Watch had previously documented scores of extrajudicial killings by the Syrian government during the conflict in an April report, as well as in previous reports of human rights abuses by the rebels. None of those acts of brutality justified executions without judicial process, he said."  If you read Nadim on Twitter he is going out of his way to justify why they criticized the executions.  The language, of course, is very mild but still.