Tribute To Victims Killed During Attack At Satirical Magazine Charlie Hebdo At Place De LA Republique In Paris [Getty Images]

PARIS, FRANCE - JANUARY 07: Candles and posters are left at a vigil at the Place de la Republique (Republic Square) for victims of the terrorist attack, on January 7, 2015 in Paris, France. Twelve people were killed, including two police officers, after gunmen opened fire at the offices of the French satirical publication Charlie Hebdo. (Photo by Dan Kitwood/Getty Images)

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