"The report is unambiguous. We have a clear answer as to what the cause of death was, but we are not yet ready to make this public," Yngve Skovly, a lawyer with the police in Sunnmøre, told Aftenposten. "We are keen to find this person as quickly as possible."
The body, which was found by a sniffer dog on a steep slope covered in dense vegetation on Saturday, had visible injuries indicating that she had died after a violent struggle, VG reported. The hunt for Aarseth had involved some 300 people, many of them volunteers, combing the hills where she was last seen.
The Norwegian Criminal Investigation Service has sent samples taken from the body for forensic analysis, and hope that DNA traces found on the body or where it was found, will help identify the murderer.
Skovly said that the police would seek to take DNA from men known to have been near or around the site at the time Aarseth disappeared.
"Experience shows that when it comes to such serious acts, it is always men who are the perpetrator," Skovly said.