A photographer takes pictures of images of reporter Candido Rios, who was killed in Veracruz, during a demonstration against his killing, at the Interior Ministry building in Mexico City, Mexico on August 24, 2017. Last year, at least six reporters were murdered in Mexico in retaliation for their work, according to CPJ research.(Reuters/Henry Romero)
A photographer takes pictures of images of reporter Candido Rios, who was killed in Veracruz, during a demonstration against his killing, at the Interior Ministry building in Mexico City, Mexico on August 24, 2017. Last year, at least six reporters were murdered in Mexico in retaliation for their work, according to CPJ research.(Reuters/Henry Romero)

Mexican journalist killed in Tamaulipas