Before Tumbler Ridge, before Sandy Hook, even before Columbine, an Edmonton high school was home to the first mass school shooting documented in Alberta. Read MoreOn Monday, March 16, 1959, Stanley George Williamson brought a borrowed rifle to the school he had recently dropped out of: Ross Sheppard High School Canada, News, school shooting Before Tumbler Ridge, before Sandy Hook, even before Columbine, an Edmonton high school was home to the first mass school shooting documented in Alberta. Read More