The Court of Appeal reduces the sentence of the now 18-year-old man from seven to five years' imprisonment.
The case was tried in the highest instance to determine whether it was correct to convict the teenager according to Denmark's terrorism legislation. It was, the Supreme Court announces.
The man was 15 years old when he joined an organization calling itself Feuerkrieg Division, a subgroup within a right-wing extremist movement that emerged on online forums.
He lived with his parents on western Zealand when he was involved in organizing the group in a kind of leadership role and, among other things, uploaded detailed bomb manuals. He is also convicted of having recruited a friend.
Four months after he joined, the boy was detained for the first time, after the police learned that he had written a post about wanting to shoot with weapons at a preschool. They found more information on his computer, which led to the suspicions developing. He has since been convicted of terrorism offenses in the corresponding district court and court of appeal.
The group that the teenager joined has been estimated by investigators to have several dozen members worldwide, with explicit goals of race war and white power. The group's founder and leader turned out to be a 13-year-old boy in Estonia, which was unknown to the other members, as reported by Expo, among others, a few years ago.