BBC World Service offers the possibility that the Norway attacks may be the work of rightwing extremists. Attack number two, carried out by a man armed with three weapons (shotgun, automatic, and handgun) and dressed as a policeman opened fire on a youth camp on an island in the Oslo fjord. The camp is sponsored by or related to the Norwegian labor party. It's attended by kids from 14 up through the 20's and various notables -- among them the prime minister -- were scheduled for visits.
The shooter has been caught, several kids may have killed. No more known at this point.
Reuters offers a "snap analysis."
Security experts say suspicion is likely to fall on both Islamists and right-wing extremists following a deadly bombing and a shooting at a political gathering in tranquil Norway.
It was not clear if the attacks were linked, but the possibility of a complex, hybrid assault made it difficult to make an early call as to the likely political orientation of the assailants, security experts said.
Another possibility, Reuters reports, is an Al Qaeda affiliate.
A third possibility was Norway's placing under house arrest of an Iraqi Kurdish Islamist, Mullah Krekar, a onetime leader of a guerrilla group, Ansar al-Islam. However, there was little or no evidence that al-Qaeda cared enough about Mullah Krekar to seek vengeance, Hegghammer and Tierney said.
"It may be pointless to search for a single grievance to explain the recent plot. Most likely, a combination of factors placed Norway on the jihadists' radar. In al-Qaeda's binary worldview, Norway is part of the 'Jewish-Crusader alliance' -- not a platinum member, perhaps, but a member nonetheless. If you're not with al-Qaeda, you're with the United States."
Not that Al Qaeda isn't "right wing" but this smells like domestic right wingers to me.