There might well be. It would take a person who has heart of stone and regards his enemies as less than human to do something like what Breivik did. He has identified himself with the Knights Templar*, much like an anti-Christ figure who pretends to be good, but is in fact evil.
I think as a result of his actions it become harder for any one identified as "right-wing" to get their message out. We will become associated with Breivik, even thought we are nothing like him and condemn his actions in the strongest terms. The Norwegians may be televising his trial for many reasons, but I'm sure the propaganda value figured highly into their decision. At least they won't be showing his testimony.
Breivik Admits Massacre, Claims Self-Defense ~ Time
Tears of a mass murderer: Norwegian killer Breivik breaks down as film of his hero Vlad the Impaler is played (but stays stony-faced as court describes way he slaughtered 77) ~ Daily Mail UK
Has pictures of some of the 77 killed and some videos of the trial, included Breiviks's apparent right-wing salute.
*The Knights Templar (as they were intially set up) were a devout religious order of soldier-monks who fought in the Holy Land against the Mohammedans. They didn't rampage through their own towns killing the children of politicians with whom they disagreed. This is the problem with non-believers using Christian imagery and traditions - they see only the external and miss what is really important.
If you want to know more about the Knights and want to be assured of an accurate history, I strongly recommend this book by French historian Regine Pernoud: The Templars Knights Of Christ. I've linked to the Kindle edition below, but if you prefer paper copy, just follow the link on Amazon to the paperback page. Also, have a look at this page on the Catholic Encyclopaedia: The Knights Templars and my previous post that includes the foreward to the book below: Correctly the mythology around the Knights Templar.