A 19-year-old Canadian high school student was allegedly beaten to death by teenage girls who livestreamed a video o of the brutal attack on to facebook According to CBC News, Serena McKay, 19, was killed Sunday night 23-04-17 Two teenage girls, ages 16 and 17, have reportedly been arrested in connection to her death.McKay was reportedly a student at Sagkeeng Anicinabe High School, as were the alleged attackers. The school principal Claude Guimond told CBC News that McKay was set to graduate this year, and told the news outlet he had watched the brutal video.