Two journalists were murdered within the space of 24 hours in Mexico last week. Jaime Arturo Olvera Bravo, a freelance photographer and former correspondent for the daily La Voz de Michoacán, was killed on 9 March in La Piedad in the central state of Michoacán, and Ramiro Téllez Contreras, a local radio reporter and police station switchboard operator, was killed the next day in Nuevo Laredo in