How DNA genealogy solved Sweden's coldest double murder

16-year-old Linköping killings cracked with ancestry databases—a Nordic first

In 2004, an 8-year-old boy and a middle-aged woman were stabbed to death on a Swedish street in a case that would baffle investigators for over a decade. When police finally made an arrest in 2020, they employed a groundbreaking technique that had never before secured a murder conviction in Scandinavia.