MEXICO CITY — A year ago, at least eight gunmen in military fatigues stormed the home of the crime reporter Anabel Flores near the city of Orizaba and dragged her away from her pleading family. The next day her body was found on a road; she was dead at 32, just a few weeks after giving birth to her second child.

In May and August, police arrested two suspected members of the Zetas drug cartel for the killing, but haven’t released their names or more details, leading the Committee to Protect Journalists to report that “the case remained opaque” — like the homicides of so many of her colleagues here.

Last year was one of the most deadly for Mexican reporters in recent history. Even the total number of victims is hard to pin down, thanks to botched investigations and confusion about how many of the dead officially worked as journalists. But most press groups count at least nine slain here in 2016, some as many 16. Reporters Without Borders said Mexico was the third most perilous country in the world for journalists, after Syria and Afghanistan — in other words, the most perilous outside a declared war zone.

When these annual numbers were released in December, they didn’t make much of a splash. People have become accustomed to grisly stories of Mexican gangsters dragging reporters from their homes, ambushing them in their cars or leaving severed heads outside their newsrooms. Since 2000, the total journalist body count here has reached 100, according to the press freedom group Article 19. The murder of Mexican journalists is old news.