Organised crime seems to have been responsible for the murders of two journalists on March 25 in Monterrey, in Mexico's northern state of Nuevo León – José Luis Cerda Meléndez, 33, a programme host on the national TV channel Televisa, and Luis Emanuel Ruíz Carrillo, 20, a reporter for La Prensa, a daily based in the neighbouring state of Coahuila, Paris-based press freedom group Reporters sans...