Swedish forensic centre solves 2005 Brattås double murder with DNA genealogy

Police investigators arrested a suspect in the 2005 double murder of Tor Öberg and Gerd Wiklund in Brattås, outside Härnösand, after more than two decades of uncertainty. The breakthrough came through DNA‑genealogy analysis conducted by the National Forensic Centre (NFC), marking the first arrest using the method since it was authorised in the summer of 2025. The suspect, now in custody, denies involvement and his lawyer has offered an explanation for the presence of the suspect’s DNA at the crime scene.

The NFC explained that the technique is permitted only in investigations of homicide or severe rape and requires high‑quality DNA traces. While it has previously assisted in a 2004 Linköping double‑murder pilot, the Brattås case is the first to result in a detention after the legal change. NFC officials hope the method will later be applied to identify unknown deceased individuals, citing successful use in the United States.

The centre stresses that case acceptance depends on the quality and quantity of DNA evidence, and that police regions may nominate cases for review. Future advancements could broaden the method’s applicability as forensic technology evolves.