I assume we're not speaking definitively about the results of the Russian investigation. I guess the initial indication is that this was someone inspired by Daesh, which underscores or affirms part of the Putin narrative about Syria and international politics more broadly.
I'm not saying this means that I approve, condone, or agree with it, but when I was talking earlier about Russia's approach to Syria, I was putting it very much in terms of the domestic and geopolitical benefits of the Russian approach. Part of the Putin argument and the Russian argument more generally has been that their approach to Syria is a way to ultimately bring stability to the region, and thus diminish the prospect of people coming from the region back into central Asia and perpetrating such acts in Russia.