Police said they arrested three Indian nationals in the slaying of Hardeep Singh Nijjar last June that became the center of a diplomatic spat with India.
The current India-Canada crisis has exposed a sharp disconnect between India and the West on the issue of Sikh separatism. Michael Kugelman of the Wilson Center's South Asia Institute explains why.
India expelled a senior Canadian diplomat a day after Canada expelled a top Indian diplomat over allegations that India may have had links to the assassination of a Sikh activist on Canadian soil.
"These kinds of violent attacks are a threat to all of us," said community member Maninder Singh Walia. The gunman's motive in attacking a FedEx warehouse on Thursday night is still unknown.