If the effect of your actions is a war crime, you are a war criminal.
If the Russians also do it, that is additional evidence of war crimes.
If the Russians also do it, that is additional evidence of war crimes.
war crimes usually defined by intent: were civilians targeted intentionally.
With this in mind, I don't follow your example at all. Are those bankers of wartime value? And if they are, is the collateral damage proportional to that value? It's possible there's a lot I don't know about those banker's links to military!
I'm not sure all the facts are in yet in relation to Ukraine, but I do not anticipate that Putin will be getting his yacht back in the immediate future.
The question was specifically about genocide allegations, and blind trust in UN sub-orgs reports.