Michael Zehaf-Bibeau, the Muslim convert who fatally shot Corporal Nathan Cirillo - a 24-year-old father standing guard at Ottawa's War Memorial - and injured another officer, was a petty criminal and the son of a leading Canadian immigration official. Born in Quebec as Michael Joseph Hall and raised in Laval, just north of Montreal, the young man lived a quiet childhood of private schools and suburban homes, with a mother who was a high ranking federal employee. Then, after years of run-ins with the law, he converted to Islam.