Why kill Litvinenko with nuclear radiation?

There are rumors circulating on the Internet that Alexander Litvinenko converted to Islam. lgf: Russian Spy Died of Radioactive Poisoning, Converted to Islam? The source of the rumors is Moscow radio station Echo that is owned by, I kid you not, Gazprom.

Leonid Nevzlin

Reminder that Gazprom is the oil giant formed after the takeover of Yukos and imprisonment of its founder Mikhail Khodorkovsky (see mentalblog.com: Putin to get a medal from Lubavitch in... Auschwitz). Billionaire Leonid Nevzlin, Mikhail Khodorkovsky’s second in command, currently lives in Israel. Nevzlin revealed that Litvinenko visited him two weeks before the radiation poisoning. Report: Poisoned spy visited Israel with oil dossier – Ynetnews: "The Times reports Alexander Litvinenko traveled to Israel just weeks before he died to hand over evidence to Russian billionaire [Leonid Nevzlin] of how agents working for Putin dealt with his enemies running Yukos oil company".

Boris Berezovsky

Litvinenko was on the payroll of another Putin’s arch enemy Boris Berezovsky. It appears that the radio station’s rumor about Litvinenko converting to Islam is being planted to buttress the official Russian version that Litvinenko was murdered by the rich émigré Jews who employed him.

Mikhail Khodorkovsky

Inquiring minds want to know. Why rely on the complicated and dangerous nuclear radiation poisoning while you can kill a person with a sniper shot? When Putin went after Mikhail Khodorkovsky it was a brilliant move to frighten the oligarchs, it signaled that if I (Putin) can take out the biggest amongst you, I can also take care of you. So with the murder of Litvinenko the signal to oligarchs is that despite of the fact that you always anticipate assassination and you protect yourself accordingly with the small armies and careful movements, etc. you do not know how and when I (Putin) can take you out…