He's actually telling the truth, in the run up to MH17 Ukraine was complaining that their planes had been fired on and perhaps even shot down by Russian fighter jets. As a result of this they moved their Buks into the area. This is one of the problems that obfuscates everything and makes it even harder to ever find the truth, because we know for certain that Ukraine and the Ukrainian rebels had Buks in the conflict zone, and we suspect there is a strong possibility Russia may have sent some too.