DarthKermit: The Turks say they warned the Russian plane ten times, the Russians say that no warning was received. Which version of events is the correct one?
We don't know jack at this point.
Afaik, the fighter jet should have make visual contact - they need to attempt to see who is in the plane but this definitely did not happen.
Remember, there are two unescorted bombers, one return and this one got shot.