Heber Lopez Vazquez, who ran a news website called Noticias Web in the southern state of Oaxaca, was shot in his car, state prosecutor Arturo Calvo told the TV channel Milenio. Two suspects were arrested as they tried to flee the scene of the crime and their guns were recovered, Calvo said, adding it was not known who ordered the killing. Lopez’s death brings the number of journalists killed in Mexico this year to five, according to an AFP tally based on data from press freedom advocacy organisation Reporters Without Borders (RSF). Mexico is considered one of the world’s most dangerous countri…