"Finally, there was undoubtedly a personal dimension to the antagonism between Mr Litvinenko on the one hand and President Putin on the other. The history between the two men dated back to their (only) meeting in 1998, at a time when Mr Putin was the newly appointed head of the FSB and Mr Berezovsky and Mr Litvinenko still hoped that he might implement a programme of reform. In the years that followed,Mr Litvinenko made repeated highly personal attacks on President Putin, culminating in the allegation of paedophilia in July 2006"
That is from the report. Call me a Putin-apologist, an agent from Olgino, but these motives look like garbage. There is an entire industry of "making highly personal attacks" on Putin and blaming all kinds of things on him. The name of these "Putin's critics" is legion, they have been doing it for more than a decade, and they've had zero success... that is, of course, if by "success" you mean making Russians believe what they say, and not just selling shocking stories about the darkest secrets of the KayGeeBee to British tabloids...