"Yet when faced with this first example of a Canadian, one of our own children, needing that help, we looked away and abandoned him." 
I'm sorry but I don't view Omar Khadr as one of our own nor any member of his family. He has conveniently hidden behind his Canadian citizenship when it was needed - for help against the imprisonment - and has shown zero remorse etc for his actions. His entire family should have been stripped of their citizenship the minute the father took the son to fight with the Taliban. That is the real black mark on Canada.