The clarification comes over a year after Trudeau said in the House of Commons that there were "credible allegations" linking Indian agents to Nijjar's murder.
The Royal Canadian Mounted Police (RCMP) said, in a release on Friday, that Muhammad Shahzeb Khan, 20, was arrested in the town of Ormstown in the province of Quebec, on Wednesday
The arrests were announced in a release on Monday from the Royal Canadian Mounted Police’s Federal Policing Integrated National Security Enforcement Team, Northwest Region