According to the Russians, yes.
McClatchy: Russia says it's compiled 100-page report blaming Syrian rebels for a chemical weapons attack
http://www.mcclatchydc.com/...
According to the article, the report was not released, but
had been delivered to the United Nations in July and includes detailed scientific analysis of samples that Russian technicians collected at the site of the alleged attack, Khan al Asal.
A statement from the Russian Foreign Ministry,
said its investigation of the March 19 incident was conducted under strict protocols established by the Organization for the Prohibition of Chemical Weapons, the international agency that governs adherence to treaties prohibiting the use of chemical weapons. It said samples that Russian technicians had collected had been sent to OPCW-certified laboratories in Russia.
The Ministry statement,
drew a pointed comparison between what it said was the scientific detail of the report and the far shorter intelligence summaries that the United States, Britain and France have released to justify their assertion that the Syrian government launched chemical weapons against Damascus suburbs on Aug. 21. The longest of those summaries, by the French, ran nine pages. Each relies primarily on circumstantial evidence
It noted that,
the attention paid to the Aug. 21 attack had diverted attention from the investigation into the March 19 incident, which was the reason U.N. investigators were in Syria when the more recent attack took place.
“Unfortunately, that investigation still essentially has not begun,” the statement said.
Read the article and decide for yourselves. There is supporting and conflicting information presented.
The point, to me, is that if this is true, it is another reason why we should stay out, and not choose sides, especially one that may have also used sarin, first, and hates us religiously.
In the end, as with the muhajadin, we may cut of our nose to spite our face.