A Norwegian court delivers its verdict in the trial of confessed mass killer Anders Behring Breivik Friday, deciding whether to send him to prison or to a mental hospital for twin attacks last July that killed 77 people.

Breivik has confessed to the killings that took place during a bombing and shooting rampage on a government building in Oslo and a political youth camp. He has undergone two psychiatric evaluations, with one ruling him mentally incompetent and the other ruling him sane.

If deemed sane, he faces a 21-year prison sentence that could be extended beyond that for as long as he is considered dangerous.

Breivik's defense lawyer says his client will accept a prison term, but will appeal if he is sent to a mental hospital.

On July 22 of 2011, Breivik detonated a bomb near an Oslo government building, killing eight people. Then he shot dead 69 people, mostly teenagers, at a youth camp on Utoeya Island.

Breivik has said he was acting to fight multiculturalism in Norway and what he sees as a Muslim invasion of Europe.