He was nine weeks old when they first spotted something that caused concern.
Carney defended his decision to invite Modi despite the allegations while speaking to reporters on Friday.While India is not a member of the G7, Modi has attended meetings at previous summits. Carney, who is chairing this year's G7 summit, said key discussions will be held that "certain countries" should be at the table for.
The readout said Carney and Modi agreed to "continued law enforcement dialogue and discussions addressing security concerns" surrounding the allegations.Asked if he believed Modi was involved in the killing of Mr Nijjar, Carney said it was not appropriate to comment on an ongoing legal case.The decision to invite Modi was condemned by some members of Canada's Sikh community.
The World Sikh Organisation called it a "betrayal of Sikh Canadians" in a statment, while the Sikh Federation of Canada called it "a grave insult".Mr Nijjar was prominent in British Columbia's Sikh community. Supporters of his have said that he was the target of threats in the past because of his activism over Khalistan.
A trial date has not yet been set for the four men accused of killing Mr Nijjar.
The G7 summit is set to take place between 15 and 17 June in Kananaskis, Alberta. Topics on the agenda, according to the summit's website, include "international peace and security," "global economic stability," and the "digital transition".Their leader, John Swinney, had claimed that only his party could beat Reform in this particular seat.
But Labour confounded expectations somewhat. Their newest MSP, Davy Russell, is off to Holyrood.He'd faced criticism for avoiding some interviews during the campaign, but party insiders insist that his local popularity is what allowed them to squeeze a victory.
All that being said, there are some caveats to this result.Labour won a Westminster by-election in this area less than two years ago with a majority of about 9,500.