Thousands pay tribute during a gathering at the Place de la Republique in Paris, following a shooting by gunmen at the offices of weekly satirical magazine Charlie Hebdo. Gunmen stormed the Paris offices of the weekly satirical magazine Charlie Hebdo, renowned for lampooning radical Islam, killing at least 12 people, including two police officers in the worst militant attack on French soil in recent decades. The CBC`s Jeff Semple was there.
