2 Russian oligarchs were found dead one day apart alongside their wives and children,

[Ninurta]

I saw this OTOS, turns out there have been 6 in total.

Every Russian Oligarch Who Has Died Since Putin Invaded Ukraine—Full List

Odd that the only suicide notes found were found in ... Russia.

That's the FSB (KGB) way of hushing up people in russia from claiming it was a government sanctioned hit, that way they can say hey look he left a note.

Else where in the world, they can just say if to much stink is raised in russia or any where else it's a western Nazi plan to discredit putin.

I wouldn't put it past them, their so brazen that they don't even try to make up believable / plausible lies. Just shovel out some Bullshit that only the really harden brainwashed would believe.

But why weren't suicide notes found in the other countries? A Russian hit squad ought to be able to whip up a suicide note in Russian pretty damned easily, anywhere in the world they are operating in. Things that make you go "hmmm..."

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