Don't forget that is killed like a dozen people. that only makes sence if:

• "WMD" stands for Weapons of Minimal Destruction
• The chemical weapon was on the ground (in ISIS hands) and exploded incidentally from a conventional Syrian bomb drop
• ISIS had the bomb and blew up themselves on purpose as a false flag, but did it to only kill a few civilians.
• It was fake, there was no chemical attack

Personally, I'm leaning toward the second, but regardless the story in the MSM makes no fucking sense.