The father of Norwegian mass killer Anders Behring Breivik said he fears his son is becoming even more extreme and dangerous in prison.

The right-wing fanatic accused of murdering 77 people during a devastating bomb and gun attack in Norway last summer is expected to take the stand on the second day of his trial.

THE head of Norway’s Police Security Service says the right-wing extremist who shocked Norway with a bombing and youth camp massacre appears to be a sociopathic lone wolf who kept his diabolic plans to himself for more than a decade.