The body of Noel López Olguín, a local journalist based in the eastern state of Veracruz who had been missing since March 8, was found near Jáltipan, on June 1, four days after Alejandro Castro Chirinos, also known as “El Dragón,” was captured in the nearby city of Coatzacoalcos and confessed to participating in his murder. Police said Castro, who was caught in possession of López’s camera, told...