Toronto [Canada], May 5 (ANI): Prime Minister Justin Trudeau said on Sunday that the investigation into the killing of India-designated terrorist Hardeep Singh Nijjar is “not limited” to the arrest of three Indian nationals and is ongoing. Trudeau said that it is important because “Canada is a rule-of-law country”. The Canada PM’s remarks came days after three Indian nationals were arrested for their alleged involvement in the killing of Nijjar. The Canadian police on Saturday released photographs of all three persons arrested in the last year’s killing of Nijjar amid an ongoing probe into the…