Original: He has also been accused by Russian authorities of being involved in the murders of several leading critics of the Putin 's regime , including Litvinenko and journalist Anna Politkovskaya , in an attempt to destabilize the country and discredit Putin .
Simplified: The Russian authorities have accused him of trying to murder several leading critics of Putin 's regime , including Alexander Litvinenko and journalist Anna Politkovskaya , in order to make Putin look bad .