From CBC News.

After he murdered a student from another school at his home on Oct. 27, 1975, the perpetrator opened fire on his religion class at Ottawa’s St. Pius X High School, wounding 18-year-old Mark Hough. Hough died in hospital just over a month later. Five decades later, his family is opening up about what happened next. (Videography and editing by Mathieu Deroy. Production design by Michel Aspirot. Additional videography by Francis Deschênes.) (Thumbnail photo provided by the Hough family.)

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