They just keep regurgitating that Assad did it. They can't tell you how they know because they would have to divulge their sources. Problem is I need to know more otherwise I am not prepared to believe it.
Logic would say Syrian Government (not Assad because we deal with a country not one person) had nothing to gain and a lot to loose by using chemical weapons. Yet the opposition had everything to gain by bringing the emotionally charged Anglo-Americans (and Canada in tandem) and their intellectually compromised media on board. The rest of the G7 are just hangers on. They lack the spine to speak up.
We need an independent investigation.