&gt; We&#x27;ll never know 100% but Ukraine controlled the air so only the rebels had motive to shoot down planes, and had bragged about it on social media.<p>At the time, Kiev was complaining that Russia was sending out spy planes into its territory.<p>Knowing the state of the Ukrainian military, to me it&#x27;s much more likely that they mistaken the plane for something it was not and shot it down.