The Russian military said they detected radar activity in the vicinity of several Ukrainian missile batteries in eastern Ukraine on the day in question. They were specific about the locations and the times.
How hard would it be to have monitors from OSCE check those Ukrainian batteries for evidence of a missile being fired?
The Russians lie. They are the masters of disinformation. They told us there were no Russian military in the Crimea. The people wearing uniforms without insignia had picked up the uniforms in local stores. Anyone who buys what the Russians are saying is a fool.