This still doesn't equate with the Turkish line- that you hailed the Russian plane 10 or so times prior to engaging them?
+ 1km near the Turkish border is still not Turkish airspace, you stll have no authority to shoot them down. Even if it was 1km or 10km inside your territory, why shoot them down at all? Why not pursue this through diplomatic channels? Escalating this to force was a massive over-step by the Turkish side.
I only say that "Vladimir Putin" has said this officially, this is more confirming that the "Russian SU-24AB" was in Turkey then in Syria.