Cold North Killers: Canadian Serial Murder includes a serial killer who committed murders in Canada, but was of what nationality?
Cold North Killers: Canadian Serial Murder:  "Cold North Killer's" own definition of what constitutes a Canadian serial killer includes both Canadians who committed murder abroad (such as Keith Hunter Jesperson and Gordon Stewart Northcott) and non-Canadians who committed murder in Canada (like William Dean Christenson and Earle Nelson).
i don't know