Some would blame it on the CIA. The more likely perpetrator would always be someone in Russia trying to replace Putin. Assassinating or targeting political lea

Some would blame it on the CIA. The more likely perpetrator would always be someone in Russia trying to replace Putin. Assassinating or targeting political leaders is a war crime. The CIA might have done that - quite a while in the past, mind you - but never against an adversary like Russia. At the very least you would expect a few US politicians to drop dead if there ever were such an attempt.