Thousands of mourners lined the streets of Hamilton, Canada, on Tuesday to say goodbye to Cpl. Nathan Cirillo, the soldier shot dead by an apparent terrorist last Wednesday while standing guard at the country's National War Memorial in Ottawa. Military comrades formed a processional alongside the flag-draped casket at the regimental funeral, where Prime Minister Stephen Harper eulogized the young reservist, saying Canadians' "hearts are broken" over his slaying by Michael Zehaf-Bibeau, who then stormed a Parliament building before he was shot by security staff. Among the mourners was Cirillo's son Marcus, 5, wearing a hat similar to his father's, a gift from the late corporal's regiment. Secretary of State John Kerry said Tuesday in Ottawa that the attack on Parliament was clearly "a terrorist act."