An 18-year-old woman, Jesse Van Rootselaar, with mental health issues, committed a mass school shooting in Tumbler Ridge, British Columbia, after killing her mother and stepbrother. The suspect died by suicide, and police have revised the death toll to nine, including Van Rootselaar, not providing a motive for the attack.

• The attacker, Jesse Van Rootselaar, first killed her 39-year-old mother and 11-year-old stepbrother at home before going to her former school.
• At the school, Van Rootselaar shot a 39-year-old female teacher, three 12-year-old female students, and two male students (one aged 12 and one aged 13).
• Police had attended the family residence multiple times previously due to mental health concerns regarding the suspect, and firearms had been temporarily seized from the family two years ago.