Syria spent years convincing the UN they had got rid of their chemical weapons. Now we're supposed to believe Syria used a chemical weapon - proving that Syria hasn't got rid of all their chemical weapons - when Syria is winning the war and doesn't need to use chemical weapons. We're supposed to believe Syria would risk everything to use a chemical weapon

It doesn't make sense. 

However we know the Islamist terrorists have chemical weapons, we know they manufacture chemical weapons in Syria, and we know for a fact that the terrorists have used chemical weapons many times before.

Also, it's weird a chemical weapon is deployed at this time as talks start in Geneva. Always good timing to use chemical weapons.

I suspect the Islamist terrorists used the chemical weapon, not Syria.