8. People hold up pens and posters reading 'I am Charlie' in French as they take part in a vigil of people, including many who were French, to show solidarity with those killed in an attack at
the Paris offices of weekly newspaper Charlie Hebdo, in Trafalgar Square, London, Wednesday, Jan. 7, 2015. (AP Photo/Matt Dunham)
9. A young man lits a candle in front of the French Embassy in Prague, Czech Republic, on Wednesday, Jan. 7, 2015, to pay tribute to victims of Wednesday´s terrorist attack in Paris at the
offices of the satirical newspaper Charlie Hebdo. (AP Photo/CTK, Katerina Sulova)
10. A person holds a placard which reads "Charb died free" to pay tribute during a gathering at the Place de la Republique in Paris January 7, 2015, following a shooting by gunmen at the
offices of weekly satirical magazine Charlie Hebdo. (REUTERS/Gonzalo Fuentes)
11. People gather in solidarity of the victims of a terror attack against a satirical newspaper, in Paris, Wednesday, Jan. 7, 2015. (AP Photo/Thibault Camus)
12. A woman holds a candle during a gathering to pay respect for the victims of a terror attack against a satirical newspaper, in Paris, in Paris, Wednesday, Jan. 7, 2015. (AP Photo/Thibault
Camus)
13. Candles and a placard which reads "I am Charlie" are pictured as tributes to victims at the French embassy at Pariser Platz in Berlin January 7, 2015, following a shooting by gunmen at
the offices of weekly satirical magazine Charlie Hebdo in Paris. (REUTERS/Fabrizio Bensch)
14. A man holds a poster reading "Je suis Charlie" (I am Charlie) during a vigil in Trafalgar Square for victims of the terrorist attack in Paris on January 7, 2015 in London, United Kingdom.
(Photo by Rob Stothard/Getty Images)
15. A person holds a sign while other people gather at a vigil in front of the French Embassy following the terrorist attack in Paris on January 7, 2015 in Berlin, Germany. (Photo by Carsten
Koall/Getty Images)
16. People hold candles as they pay tribute to the victims of a shooting by gunmen at the offices of weekly satirical magazine Charlie Hebdo in Paris, in front of the European Parliament in
Brussels January 7, 2015. (REUTERS/Francois Lenoir)
17. A person holds a candle next to a placard which reads "I am Charlie" to pay tribute during a gathering in Strasbourg January 7, 2015, following a shooting by gunmen at the offices of
weekly satirical magazine Charlie Hebdo in Paris. (REUTERS/Vincent Kessler)
18. People gather showing their support for the victims of the terrorist attack at French magazine Charlie Hebdo, in front of the Consulate of France on January 7, 2015 in Barcelona, Spain.
(Photo by David Ramos/Getty Images)
19. A woman holds a poster reading "I am Charlie" as she gathers in Nice, southeastern France, to express solidarity with those killed in an attack at the Paris offices of weekly newspaper
Charlie Hebdo, Wednesday, Jan. 7, 2015. (AP Photo/Lionel Cironneau)
20. People hold posters reading 'I am Charlie' as they gather to express solidarity with those killed in an attack at the Paris offices of weekly newspaper Charlie Hebdo, in Nice, southeastern
France, Wednesday, Jan. 7, 2015. (AP Photo/Lionel Cironneau)
21. A man holds a copy of Charlie Hebdo to pay tribute during a gathering at the Place de la Republique in Paris January 7, 2015. REUTERS/Christian Hartmann
22. A woman holds a placard reading "I am Charlie" during a gathering to pay respects for the victims of a terror attack against a satirical newspaper, in Paris, Wednesday, Jan. 7, 2015. (AP
Photo/Thibault Camus)
23. A woman holds a placard that reads, I am Charlie, during a vigil at Trafalgar Square in London January 7, 2015. REUTERS/Stefan Wermuth
24. A man wears a pen in a black armband during a vigil for the victims of the shooting at the Paris offices of the publication Charlie Hebdo, outside the French consulate in Seattle,
Washington January 7, 2015. REUTERS/Jason Redmond
25. A woman raises a pen during a vigil to pay tribute to the victims of a shooting by gunmen at the offices of weekly satirical magazine Charlie Hebdo in Paris, at Trafalgar Square in London
January 7, 2015. REUTERS/Suzanne Plunkett
26. People hold up posters, which include Charlie Hebdo Editor Stephane Charbonnier (front), a cartoonist known as Charb, and Jean Cabut (back L), a cartoonist known as Cabu, during a
vigil to pay tribute to the victims of a shooting, by gunmen at the offices of weekly satirical magazine Charlie Hebdo in Paris, in the Manhattan borough of New York January 7, 2015.
REUTERS/Carlo Allegri
27. People leave pens and pencils on a French flag a vigil for the victims of the shooting at the Paris offices of the publication Charlie Hebdo, outside the French consulate in Seattle,
Washington January 7, 2015. REUTERS/Jason Redmond
28. A woman is seen with "Not scared" written on her hands as she attends a vigil to pay tribute to the victims of a shooting by gunmen at the offices of weekly satirical magazine Charlie
Hebdo in Paris at Republique square January 7, 2015. REUTERS/Youssef Boudlal
29. A woman raises a pen during a vigil at Trafalgar Square in London January 7, 2015. REUTERS/Stefan Wermuth
30. Sandra Jugo takes part in the vigil outside the Newseum. (Jim Lo Scalzo/European Pressphoto Agency)
31. Signs from the rally at the Place de la Republique in Paris. (Joel Saget/AFP/Getty)
32. A man places a candle in front of the Brandenburg Gate at the French embassy at Pariser Platz in Berlin January 7, 2015. REUTERS/Fabrizio Bensch
33. Flowers, candles and a placard which reads "I am Charlie" are displayed to pay tribute during a gathering at the Place de la Republique in Paris January 7, 2015, following a shooting by
gunmen at the offices of weekly satirical magazine Charlie Hebdo. REUTERS/Gonzalo Fuentes
34. A man places a placard during a vigil to pay tribute to the victims of a shooting, by gunmen at the offices of weekly satirical magazine Charlie Hebdo in Paris, at Paulista avenue in Sao
Paulo, January 7, 2015. REUTERS/Nacho Doce
35. People participate in a vigil to pay tribute to the victims of a shooting, by gunmen at the offices of weekly satirical magazine Charlie Hebdo in Paris, in front of City Hall in downtown
Montreal, January 7, 2015. Placards read "I am Charlie". REUTERS/Christinne Muschi
36. People take part in a vigil at Trafalgar Square in London January 7, 2015. REUTERS/Stefan Wermuth
37. A man holds a placard in front of the French embassy in Rome January 7, 2015. REUTERS/Alessandro Bianchi
38. A placard which reads I am Charlie is pictured as people gather in front of the European Parliament in Brussels January 7, 2015. REUTERS/Francois Lenoir
39. People raise pens during a vigil at Trafalgar Square in London January 7, 2015. REUTERS/Stefan Wermuth
40. People gather to mourn in front of the Brandenburg Gate near the French embassy at Pariser Platz in Berlin January 7, 2015. REUTERS/Fabrizio Bensch
41. People take part in a vigil at Trafalgar Square in London January 7, 2015. REUTERS/Stefan Wermuth
42. A woman cries during a vigil to pay tribute to the victims of a shooting by gunmen at the offices of weekly satirical magazine Charlie Hebdo in Paris, at Trafalgar Square in London
January 7, 2015. (REUTERS/Stefan Wermuth)
43. A woman holds a placard in front of the French embassy in Rome January 7, 2015. REUTERS/Alessandro Bianchi
44. People hold placards in front of the Brandenburg Gate near the French embassy at Pariser Platz in Berlin January 7, 2015. REUTERS/Fabrizio Bensch
45. Protesters in Nantes wearing "Je Suis Charlie" placards on their backs. (Georges Gobet/AFP/Getty)
46. A woman holds a candle while other people gather at a vigil in front of the French Embassy following the terrorist attack in Paris on January 7, 2015 in Berlin, Germany. Carsten
Koall/Getty
47. A woman places candles next to flowers and a placard which reads "I am Charlie" displayed to pay tribute during a gathering at the Place de la Republique in Paris January 7, 2015,
following a shooting by gunmen at the offices of weekly satirical magazine Charlie Hebdo.(REUTERS/Gonzalo Fuentes)
48. People hold posters with the words “Je Suis Charlie” (“I am Charlie”) outside the Newseum in Washington on Jan. 7 in solidarity with the victims of the shooting at the Paris office of the
satirical newspaper Charlie Hebdo. (Brendan Smialowski/AFP/Getty Images)
49. People hold placards reading ‘Je Suis Charli’ (I am Charlie) (R) and ‘Reporters without borders for freedom of press’ (L) during a gathering of people showing their support for the victims
of the terrorist attack at French magazine Charlie Hebdo, in front of the Embassy of France on Jan. 7, 2015 in Madrid, Spain. Pablo Blazquez Dominguez/Getty
50. People light candles in front of the European Parliament in Brussels January 7, 2015. REUTERS/Francois Lenoir
51. A person holds a candle during a gathering in Strasbourg January 7, 2015, REUTERS/Vincent Kessler
52. London, England - January 07: A man holds a phone displaying "Je suis Charlie" (I am Charlie) during a vigil in Trafalgar Square for victims of the terrorist attack in Paris on January 7,
2015 in London, United Kingdom. Twelve people were killed including two police officers as two gunmen opened fire at the offices of the French satirical publication Charlie Hebdo.
(Photo by Rob Stothard/Getty Images)
53. A person holds a candle during a gathering at the Place de la Republique in Paris January 7, 2015. REUTERS/Christian Hartmann