Since being elected as a member of Parliament and later as prime minister, Trudeau has been the target of increasingly hostile and even violent rhetoric, primarily on social media. Authorities have responded to a number of security incidents and made arrests of several individuals who have made credible threats to his life. According to journalist Brian Busby, "the first call to kill Justin Trudeau came on October 23, four days after the 2015 election." In January 2016, a 57-year-old Ontario man was charged for allegedly threatening to kill Trudeau, his family and female MPs while aboard a VIA Rail train headed to Toronto. In August 2016, a 41-year-old man from Saskatchewan was charged with uttering threats to Trudeau on Facebook, and in May 2017, another 34-year-old Saskachewan man faced charges in connection to a separate incident of threatening Trudeau's life. In January 2018, a 52-year-old man from Medicine Hat, Alberta pleaded guilty to making threats against Trudeau and other public officials, while another man from Alberta faced charges that same month for threatening to kill Trudeau and the Premier of Alberta Rachel Notley. In February of that year charges of uttering threats were laid for a 41-year-old man from Edmonton, Alberta, while in June, a 60-year-old man from Leamington, Ontario faced charges for contacting Trudeau's office by phone and threatening "to use an AK-47 on the prime minister" before referencing the 2014 shootings on Parliament Hill. Trudeau's wife Sophie Grégoire Trudeau was also the target of threats in May 2017 by a woman from Lethbridge, Alberta, who was placed under a restraining order, barred from attending political events, and prohibited from coming within a 100-metre radius of Grégoire Trudeau.