A demonstrator holds pencils in tribute to the victims of a shooting by gunmen at the offices of French satirical weekly Charlie Hebdo during a demonstration in Niteroi

A demonstrator holds pencils in tribute to the victims of a shooting by gunmen at the offices of French satirical weekly Charlie Hebdo, during a demonstration organized by the NGO Rio de Paz (Rio of Peace) in Niteroi, near Rio de Janeiro, Brazil, January 8, 2015. REUTERS/Ricardo Moraes