Earlier introductory Crabgrass post. Political dimensions of Trudeau having a minority government with Sikhs politically positioned in Canadian politics were mentioned in a half-hour AJ video segment, online at the end of this online AJ item.
There appears to be a Sikh diaspora desiring a Sikh independent homeland nation within a part of India that had been Sikh dominated over historical time.
Recent prior major Indian history, per Wikipedia, and history.com, involves things from the 1980s which went unmentioned within the AJ video discussion (as well as within accompanying AJ text).
Indeed, there is a history dating back prior to British colonizing India. See, also, BBC here.
websearch = sikh+separatism
The situation of the shooting in British Columbia can touch and impact economic relations between Canada and India, and there is impact on US policy.
Understanding the range of impacts leads to a perspective on the seriousness of what is going on in Canada, now. It is worth knowing more. It goes beyond a mere expatriate from the Indian subcontinent being shot. It hinges upon who was shot. And who did the shooting, who instigated it.