Sweden Democrats reject Norway attacks blame
Hellsborn's party colleagues have however condemned his argument.
"If there hadn't been any Islamisation or mass immigration then there wouldn't have been anything to trigger Behring Breivik to do what he did," wrote Hellsborn, who represents the party in Varberg in western Sweden.
"The ultimate responsibility is with the perpetrator, but if you are to discuss the underlying reasons which motivated him then it was caused by multiculturalism," Hellsborn explained to the local Hallands Nyheter daily.
Hellsborn furthermore writes that he feels no shame or guilt that he and Anders Behring Breivik share the same nationalist ideology. Those who should feel guilt are those he calls "cosmopolitans" and argues that "in a Norwegian Norway this tragedy would never have happened".
The political agenda detailed in Anders Behring Breivik's "manifesto" bears striking similarity to the ideology professed by the Sweden Democrats and when asked if the the party should shoulder some responsibility, Hellsborn replied:
"No, Breivik is a product of the multicultural society. If Europe had not become multicultural then the shootings would not have happened," he told Hallands Nyheter.