Swedish prosecutors have detained a second man in connection with the sword attack at a school in Fagersta, a small industrial town northwest of Stockholm, that killed a 17-year-old girl and wounded three boys. The arrest, announced on Wednesday, adds a new layer to an investigation already focused on an 18-year-old student accused of carrying out the assault during class time on August 21.
The suspect, whose age has not been disclosed, is being held on suspicion of aiding murder and attempted murder. Prosecutors have not detailed his alleged role, and they face a deadline of noon on Thursday to decide whether to request his formal detention or release him. The development suggests investigators are exploring whether the attack involved more than a single perpetrator, despite earlier statements that no evidence pointed to an accomplice.
A community in shock
The attack at Brinell School has shaken Fagersta, a municipality of roughly 13,000 people. The victim, a 17-year-old girl, died at the scene. Two boys, aged 12 and 17, sustained serious injuries, while a third boy under 18 was treated for minor wounds and later discharged from hospital. Police fired shots during the arrest of the 18-year-old suspect but did not hit him.
Prime Minister Ulf Kristersson visited Fagersta on Saturday, joining opposition leader Magdalena Andersson at a memorial for the victim. “What must never happen has happened again,” Kristersson said, reflecting a nation grappling with a troubling pattern of school violence.
Sweden has seen several deadly attacks on educational institutions in recent years. In 2025, a mass shooting at an adult education centre in Örebro claimed eleven lives, including the gunman, marking the deadliest such event in Swedish history. In 2022, two female teachers were killed in Malmö in an attack involving a knife and an axe. And in 2015, a 21-year-old man armed with a sword stormed a school in Trollhättan, killing three people in what authorities described as a racist hate crime; he was shot dead by police.
Investigating online links
As part of the current investigation, police are examining whether the 18-year-old suspect had connections to online communities that glorify school violence. A TikTok account reportedly belonging to him was taken down after the attack; before its removal, it contained videos praising past school attacks and an image of a sword apparently photographed inside a bathroom at Brinell School.
The case has prompted a broader political response. The Swedish government has announced the formation of a commission to study ways to curb school violence, a move that follows similar calls after the Örebro tragedy. The commission's work will likely focus on early intervention, mental health support, and monitoring of extremist online content.
Local authorities in Fagersta have also pledged support for students and staff, with crisis teams deployed to the school. The community has held vigils, and a memorial fund has been established for the victim's family.
While the motive remains unclear, the arrest of a second person suggests that investigators are not ruling out a coordinated effort. The coming days will be crucial as prosecutors decide on the fate of the new suspect, and as the 18-year-old remains in custody awaiting trial.
