On Friday, September 12, 2008, 29-year-old Carolin Stenvall left her home in Piteå for a job interview at the Icehotel in Jukkasjärvi. She never arrived. Her car, a blue Ford Focus, was found the next day at the outside Gällivare. The car was locked, and her mobile phone and jacket were still inside, triggering a massive search operation—one of the largest in modern Swedish history. The Investigation and Arrest
Under interrogation, Alldén eventually confessed to killing Stenvall, though he initially claimed it was an accident. According to his testimony: Carolin Stenvall murder trial begins - The Local Sweden
The murder of Carolin Stenvall in September 2008 is one of the most prominent criminal cases in the history of Norrbotten, Sweden. The Disappearance
For six weeks, Stenvall remained missing. The breakthrough came when police discovered a blood-stained car mat from an Audi discarded along a forest road. This evidence led investigators to , a 51-year-old father of three from Gällivare with no prior criminal record. Alldén was arrested on October 16, 2008. The Confession and Findings