The executions in Nuevo Laredo must be a watershed moment for ending human rights violations in Mexico

Arturo Garza, a 19-year-old engineering student and baseball aficionado, left home to visit his girlfriend on the night of Saturday 27 June. It was the last time his family would see him alive. The next day they looked for him all over Nuevo Laredo, a border town in the northern Mexican state of Tamaulipas. They reported his disappearance to the Special Prosecutor’s Office for Missing or Abducted Persons, but it was not until 3 July that they learned of a shootout between the Mexican Army and a group of alleged criminals, in which 12 men died.