How we know Assad didn't gas attack is a bit the same as how we know you are a payed shill, usefull liberal idiot, or deepstate.
You are exposed in a reversed kind of way.
Why would Assad gas people when he already was in a big lead of the war? While knowing that it only damages progress at this point?
Why would you post muh all jooo shit when we are already in a big lead vs the war vs the deep state? While knowing that it only damages progress at this point?