How did a killing at a Sikh temple lead to Canada and India expelling each other’s diplomats? The Associated PressIndia-Canada Diplomatic Tensions Spike Again Over Sikh Leader’s Killing—Here’s What To Know ForbesCanadian police accuse India of working with criminal network to kill dissidents The GuardianCanada alleges much wider campaign by Modi government against Sikhs The Washington PostCanada-India ties could take a long time to recover The Hill