Well, I'm regretting my reasoned answer above, because Putin is absolutely and certainly a murdering psychopath and you give absolutely no basis for your claim.

He has gone out of his way to murder great numbers of his opponents in spectacular, ghastly ways. Alexander Litvinenko, who was killed with polonium, a substance that could only have been made by a major state player, is just one of the very many enemies of Putin to die publicly and dramatically, and the spectacular death of Yevgeny Prigozhin was not the last.