Liberal Leader Justin Trudeau was confronted by the father of a victim from the deadly Iran plane crash last year, who attended the campaign stop in Richmond Hill on Friday to remind Trudeau of another promise he had made following the crash and questioned him why Canada was not criminally prosecuting members of the Iranian regime. Trudeau in response promised anew he would do everything possible to get justice. Merzhad Zarei's 18-year-old son died when the Ukraine International Airlines flight was shot down minutes after takeoff.