I feel that as we have know for years, this gentleman is a rival of Putin. In saying that it stands to reason that the Russian government should be thoroughly investigated from the outside leaving no stone unturned. I think that this is an attempt on this man's life and this should not be allowed to happen. It is not as if we have not seen this before. They are ruthless and have no value for life and definitely not for their enemies. Investigate to the 100%. They need to be made to pay for their actions in order to stop them from getting worse.