Swedish school sword attack kills 17-year-old girl; 18-year-old detained

On a Friday afternoon in Fagersta, Sweden, a place of learning became a scene of grief when an 18-year-old armed with a sword attacked students at Brinell School, killing a 17-year-old girl and seriously wounding two boys. The assault, arriving just days after students had returned from summer break, carries the particular cruelty of violence interrupting the ordinary rhythms of youth. Police detained the suspect — reportedly a former student — and are now searching for the motive that could explain how a school hallway became the site of a murder investigation.