Forty-three students disappeared late last month after a confrontation with police. Many fear that Mexico's grim record of impunity will thwart an investigation into their fate.
If the newly discovered burial site holds the remains of the 43 students missing after a confrontation with police last weekend, this would be the nation's worst known massacre since President Peña Nieto took office.
Hector Beltran Leyva was more adept and more connected than most pursuing him imagined. He reconstituted his family's criminal group, working his business and political contacts and operating in some of the least violent places behind his inconspicuous cover.
Speakers from Latin America hit on global and regional themes, and scored some diplomatic points. Domestic politics shaped many speeches at the UN General Assembly, which continues today in New York.
Reports by Esquire Mexico and the Associated Press have painted a very different picture of a June incident that killed 22 people.
Estimates of the number of disappeared people in Mexico during a decade of drug and gang violence rival numbers from Argentina's Dirty War and Colombia's armed conflict. New laws protecting victim's rights require the government to establish a national registry of those who have disappeared.
At least 60,000 people were killed in Mexico between 2006 and 2012 and tens of thousands more disappeared. But the burden of proof is on the family of the missing, who are stuck battling an unprepared and often intransigent bureaucracy as they try to find answers.
For many minors from Honduras, El Salvador, and Guatemala, making a dangerous journey north outweighs the risks of staying behind.