What happened
Twenty-two-year-old Mia Skadhauge Stevn disappeared after entering a car in Aalborg following a night out in 2022.
The investigation
Surveillance footage, vehicle tracking and digital evidence rapidly narrowed the investigation to two men, with the prosecution ultimately proceeding against Thomas Thomsen for the killing.
What the courts or investigators concluded
Thomsen was convicted of murder and related offenses and received Denmark’s most severe form of indefinite preventive detention.
Why the case remains significant
The case demonstrated how dense urban surveillance and digital movement records can establish a timeline even when an offender attempts to conceal a victim and destroy evidence.
Case context
Crime by Region organizes cases geographically so readers can move from one file to other investigations from the same country. For unresolved or contested cases, the wording above reflects the distinction between confirmed events, investigative theories and findings actually established in court.