LONDON, ENGLAND - JANUARY 11:  People gather in Trafalgar Square to show their respect to victims of the terrorist attacks in Paris on January 11, 2015 in London, England. London landmarks including Tower Bridge, Trafalgar Square and the National Gallery are to be lit in the blue, white and red colours of the French national flag later today in tribute to the 17 people killed in the Paris terror attacks. The terrorist atrocities started on Wednesday with the attack on the French satirical magazine Charlie Hebdo, killing 12, and ended on Friday with sieges at a printing company in Dammartin en Goele and a Kosher supermarket in Paris with four hostages and three suspects being killed. A fourth suspect, Hayat Boumeddiene, 26, escaped and is wanted in connection with the murder of a policewoman.  (Photo by Joseph Okpako/Getty Images)