Love watching Obama observe Putin do what Obama does all the time - tell lies that are so obviously lies that no one in the whole world believes him.
Two lying world leaders no one believes........
It was, however, a mistake—a stupid one (but recall the US shooting down an Iranian airliner). No one deliberately shot down an airliner—that would indeed have been a crime.
But this was the kind of (stupid) mistake that happens in combat zones.
Russia only looks silly trying to deny responsibility; but even stupidity isn’t a crime.