Of course I cannot. Why would NATO do that in such a way a regular guy like me could prove easily. It's just an opinion when I'm talking like they did this and that etc. But it's not of course a biased opinion or a fanaticism. Maybe Syria news wasn't big like todays in US before the lately days but we were living with it here in Turkey over the last two years as it's a war possibility next to us that could include our people. Even, we already lost more than 100 lives for this ****.
It's all either an unnamed Arab intelligence official or a rebel commander getting treatment inside of Turkey's borders or a journalist's report from the area after talking with the key guys from the both sides. Claims, statements, articles, interviews are/were far too many to ignore. But it's just in Turkish most of the time and won't be on the mainstream media obviously. Plus maybe they are not Nato branded equipment or armings or may not be sent from directly Nato's warehouses but at the end, Turkey is a Nato member and it's no secret we did hell of an aid to the rebels, Erdoğan has been accused by this but he has never denied any of it.
And none of the western countries have warned Turkey seriously.