A 30-year-old woman has been arrested by police in Canada and charged with three murders that occurred in Toronto, Niagara Falls, and Hamilton over a span of three consecutive days. Authorities have labeled the accused as a serial killer following the shocking and tragic incidents, which have left the communities mourning the loss of the victims, including a beloved retired teacher. As investigations continue, police are looking into the motives behind the killings, while advocates are rallying to address concerns related to public safety.