During the Jokela High School shooting in Tuusula, Finland, head teacher Helena Kalmi immediately ordered all students and teachers via the PA system to barricade themselves inside their classrooms after she was alerted to the shooting by the deputy head teacher at 11:47am.
During the Jokela High School shooting in Tuusula, Finland, head teacher Helena Kalmi immediately ordered all students and teachers via the PA system to barricade themselves inside their classrooms after she was alerted to the shooting by the deputy head teacher at 11:47am.