Mayor of Rotterdam, Ahmed Aboutaleb (R), chief-editor of Dutch newspaper Algemeen Dagblad Christiaan Ruesink (L) and Frank Pauw (C) deputy chief constable of the police in Rotterdam observe a minute of silence in front of a banner reading 'I am Charlie' at Square 1940, in Rotterdam on January 8, 2015, to pay tribute to the twelve people killed the day before in an attack by two armed gunmen on the offices of French satirical newspaper Charlie Hebdo in Paris. A huge manhunt for two brothers suspected of massacring 12 people in an Islamist attack at a satirical French weekly zeroed in on a northern town Thursday after the discovery of one of the getaway cars. As thousands of police tightened their net, the country marked a rare national day of mourning for Wednesday's bloodbath at Charlie Hebdo magazine in Paris, the worst terrorist attack in France for half a century. AFP PHOTO / ANP / JERRY LAMPEN -NETHERLANDS OUT- (Photo credit should read JERRY LAMPEN/AFP/Getty Images)
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