I think a lot of people may agree that "of course he was killed," but it is particularly interesting because of the poison used (polonium-210) which has only been confirmed in one other poisoning case, that of Alexander Litvinenko, the Russian dissident.

Secondly, it is of interest because Arafat's movements and those he had contact with were very limited around the time that he fell ill, so it raises interesting questions about who could have done it.

Hopefully this won't have a negative impact on ongoing peace negotiations.