Anja Weløy Aarseth, a 21-year-old student, disappeared after going for a run on Aksla in Ålesund in August 2013. Steven Dan Danielsen confessed after his arrest, was convicted of rape and premeditated murder and received 21 years of preventive detention. His sentence appeal was rejected.

Anja Weløy Aarseth was 21 and studying in Ålesund. On August 28, 2013, she left to run in Aksla, a well-used recreation area above the city. When she did not return, she was reported missing and a search began. Her body was found on Aksla several days later, and the investigation quickly became a homicide case.
Police reconstructed Anja's movements and examined evidence from the area. On September 4, investigators arrested Steven Dan Danielsen, then 23. Contemporary Norwegian reporting said he confessed during police questioning that night. DNA evidence was also linked to the crime scene.
Danielsen later admitted rape and murder, but he made claims that another person had hired him and that others were involved. Investigators said they found no evidence supporting those assertions. They are therefore recorded as claims by the defendant, not as established facts or evidence of an unidentified accomplice.
The criminal case went to Sunnmøre District Court in 2014. In addition to the rape and murder of Anja, Danielsen faced other charges, including an attempted robbery and threats. Court-appointed experts and the prosecution addressed his history of violence and the risk of future serious offending.
The prosecution asked for forvaring, Norway's preventive-detention regime for offenders considered dangerous when an ordinary fixed term is regarded as insufficient to protect the public. It can be extended under Norwegian law if the legal criteria continue to be met.
On March 3, 2014, Sunnmøre District Court convicted Danielsen and imposed 21 years of preventive detention with a minimum term of 10 years. Norwegian reporting described it as the most severe sentence available under the applicable framework.
The judgment did not depend on a rumor or an unresolved identification. Danielsen had confessed, DNA evidence connected him to the offense and the court adjudicated the rape and premeditated murder.
Danielsen appealed the sentence rather than the underlying rape-and-murder findings. In September 2014, Frostating Court of Appeal rejected the sentencing appeal and left the 21-year preventive-detention term in place.
After that ruling, Danielsen decided not to take the sentence case further. Contemporary reporting stated that he would let the appellate judgment stand. The case therefore has a clear adjudicated outcome.
Steven Dan Danielsen was convicted of Anja Weløy Aarseth's rape and murder. His later appeal concerned the severity and form of the sentence, not whether he committed those crimes. Frostating Court of Appeal rejected that challenge, and he did not pursue a further sentence appeal.
Danielsen told investigators that he had been hired to commit the killing and made statements suggesting other involvement. Police reported that they had no evidence supporting those claims. Crime by Region does not turn a convicted defendant's unsupported assertion into a second suspect, a contract-killing theory or an unresolved conspiracy.
The 21-year-old student leaves for the recreation area in Ålesund and does not return.
A search operation is launched.
Her body is located in the Aksla area; investigators treat the death as a homicide.
Police take Steven Dan Danielsen into custody. He confesses during questioning.
The court hears the rape-and-murder case and evidence relevant to preventive detention.
Danielsen receives 21 years of preventive detention with a 10-year minimum term.
Frostating Court of Appeal leaves the 21-year preventive-detention sentence in place.
Danielsen's lawyer confirms that the appellate sentence will not be taken further.
Last reviewed: September 4, 2026