Would this YUKOS guy be able to shut down the russian BBC radio station during those first critical days when the rest of the world was learning of the poisoning incident? Obviously this was done on the direct orders of putin. A british warrant should be issued for his arrest.
Shutting down BBC for a couple of days? Maybe. It would help to limit the damage. But killing Litvinenko? No, it was too damaging.
Kremlin claims ex-Yukos chief ordered murder of Litvinenko
http://www.guardian.co.uk/russia/article/0,,1979241,00.html