Tributes For Murdered Canadian Soldier

Flags are flying at half-mast across Canada this morning in tribute to murdered soldier Cpl. Nathan Cirillo. The scene of his murder remains under lockdown, but flowers are piling up at the closest accessible point. At last night's Penguins/Flyers match in Pittsburgh, fans sang O Canada before the start of the game. Trending on Twitter: #OttawaStrong.