One day after the killings at an adult educational center, some gathered to lay flowers and come to grips with the violence.

Swedish police are still investigating the gunman's personal history and have not said the attack, which killed 11 people, was targeted. Hellen Werme, a 35-year-old trainee nurse, survived the shooting. She and her classmates locked themselves inside their classroom as the shooter prowled the corridors.

Sweden’s prime minister said the attack at the Risbergska School was the worst mass shooting in country’s history