Read out loud, or get bhelp reading...
The presence of Arabs was reported from the moment that Putin made the announcement that Arabs had been found among the dead terrorists, prior to that, no one knew.
It was reported from the moment that the fact that there were Arabs in the group was known, and the only way that the person who posted the thread could have possibly known, is because she heard that fact reported in the media.
After all, she was not there either, was she?
So you agree with me then. You can't say there were Arabs until you know for sure there were Arabs. And that's exactly what I said happened. The first reports did not include them (as I have been stating) and then later reports did say that (as you have been saying).
However, you said that it was ALWAYS reported that there were Arabs. False.