The massacre in the Paris offices of satirical publication Charlie Hebdo prompted crowds of Canadians to brave the cold and head outside with "Je Suis Charlie" signs, pens, flowers and candles in a show of support for the victims and the French weekly paper. 

"We have a duty to protect our freedom of expression. We have the right to say what we have to say,” Montreal Mayor Denis Coderre said. Montreal was just one of the cities to hold a vigil for the people killed by masked gunmen who stormed the Charlie Hebdo offices.

Click on the video above to watch Thomas Daigle's look at the Canadian vigils held after the brazen Paris attack.