I believe Ellie Merton wins the prize for being the first to claim the Norwegian massacre was an Israeli government plot! Congratulations -- though I'm sure you'll soon have plenty of company.
Meanwhile, while it is true that Breivik claimed to be pro-"Zionist" ... not really. Breivik is philo-Semitic the same way that the KKK became friends with the Nation of Islam. They both liked the idea of Black people being separate from White people. Breivik, for his part, likes the idea of Israel because he likes the idea of Jews being somewhere else. His critique of the Nazis was that they should have expelled the Jews, not killed them. He currently thinks that Europe's Jewish population is small enough so as to not constitute a problem, but that America might need to start thinking about getting rid of us. And where better place to put us than in Israel? But while, yes, one of the justifications for Israel's existence is to serve as a haven for when folks like Breivik advocate our expulsion (or worse), that hardly means it is supportive of the Zionist vision to overtly promote said expulsions.
Finally, Glenn Beck compared the slaughtered children in Norway to the Hitler Youth. So folks are just covering themselves in glory all over.