Progress has been made in the investigation into last month’s murder of Venezuelan journalist Orel Zambrano, the editor of the political weekly ABC, in Valencia, in the central state of Carabobo. One of the two suspected killers, former Carabobo state policeman Rafael Segundo Pérez, was arrested on February 17, Reporters sans Frontières (RSF) has reported. Zambrano, 62, was gunned down at around 3...