I am biased against the Ukrainian government, but this entire thing reads as a propaganda piece so much I can't trust a single 'fact'. It uses lots of appeals to emotion with vague, subjective terms. To anyone biased to support the government, its not exactly persuasive is it?

I am always suspicious about a story where there are goodies and baddies.

Is there any evidence or confirmation by the press of 'dozens of unidentified dead bodies?'

Not that I am aware of.