Canadian authorities have identified the shooter who killed eight people — mostly children — at a school in British Columbia on Tuesday.

Royal Canadian Mounted Police (RCMP) have named Jesse Van Rootselaar, an 18-year-old resident of Tumbler Ridge, as a suspect, believing she died by suicide after fatally shooting her 39-year-old mother, 11-year-old stepbrother, a 39-year-old teacher, three…