Prosecutors will have to provide proof at some point to substantiate the claim that the murder was ordered from abroad. The Kremlin has long accused foes living abroad of trying to discredit Russia and topple the government. It made such a claim after former FSB officer and Kremlin critic Alexander Litvinenko died of radiation poisoning in London in November. Prosecutors must thoroughly review the evidence and share it at the appropriate time. Otherwise, questions will linger over whether they carried out an objective investigation or simply built their case around the notion that any action besmirching the Kremlin’s reputation must have been ordered by foes-in-exile.