Anders Behring Breivik on Wednesday told his trial in Oslo that he wants to face the death penalty or be acquitted.
The 33-year-old said those could be the only just outcomes of the proceedings, which are expected to last 10 weeks.
Capital punishment is illegal in Norway, but if Breivik is ruled to be sane then he will spend at least 21 years in jail.
The self-confessed killer slammed that potential sentence as “a pathetic punishment”.
If Breivik is found to be insane, he will be confined to a psychiatric institution – something which he has described as being “worse than death”.
Prosecution lawyers spent Wednesday morning quizzing Breivik about visits to London and Liberia that he claimed to have made to meet people with similar views.
They want to establish whether he acted as a lone wolf or as part of a larger group.
Lead prosecutor Inga Bejer Engh told journalists that she doubted Breivik’s descriptions of a wider network, but stressed it was up for the court to decide.