I was subjected to a liberal rant about Assad gassing Syrian people, and it sounded like some BS (Just smells like propaganda), but the Internet is a fuck these days and I'm unable to find any informtion I trust, or develop the tools to debunk wikihasbara.
Did it happen?
Not even the US has any basis for thinking that he did:
https://apnews.com/united-states-government-bd533182b7f244a4b771c73a0b601ec5