It was a link to an article published just ahead of the incident titled, "US air force Gen Selva visits Ankara to discuss terror, Syria," which stated specifically (emphasis added):
Vice Chairman of the U.S. Joint Chiefs of Staff Gen. Paul J. Selva starts his visit to Ankara reportedly to discuss the fight against DAESH and Turkey's border security in the region,It would seem that the US general would be either on hand, or having just concluded his business with his Turkish counterparts just as Turkey carried out what surely was a long-planned ambush of a Russian warplane near the Syrian-Turkish border, and in particular, precisely over the "Turkmen-populated areas in Syria."
Selva, an air force general and the nation's second-highest ranking military officer, is expected to commence his official talks with Turkish officials today and pay his first visit to Deputy Chief of Military General Staff Gen. Yaşar Güler.
During the meetings the officials are expected to discuss the Russian airstrikes on Turkmen-populated areas in Syria as well as other issues pertaining to the region.
Comment: This is something the American 'strategists' don't seem to get: that Russia can't be goaded, prodded or coerced into making decisions that would hinder the completion of their real goals. Putin seems to have the Midas touch in this regard: whatever the West throws at them, the Russians manage to turn it around in such a way that helps them, politically, economically, militarily.