Foreign experts slam Mexico's 43 missing students probe

Argentine-led forensic experts strongly criticized Mexico's investigation into the presumed massacre of 43 missing students on Feb. 7, insisting the probe must remain open as they listed a series of mishaps.
      
The Argentine Forensic Anthropology Team, with experts from 30 countries including the United States, Canada and France, joined international human rights groups in questioning the conclusions of authorities about the fate of the students.        

Attorney General Jesus Murillo Karam declared last month that he had the "legal certainty" that the aspiring teachers were murdered in the southern state of Guerrero in September.
      
Murillo Karam said evidence proved the 43 young men were abducted by corrupt police and delivered to drug gang members who killed them, incinerated their remains in a landfill in the town of Cocula and dumped them in a river.
      
The Argentine team, which was hired by the parents of the students and has worked alongside federal investigators, said it did "not exclude the possibility that some of the students met the demise" described by prosecutors.
      
"However, in our opinion, there is no scientific evidence to that effect at the Cocula landfill," the team said in a 16-page statement.
      
Human rights groups have also criticized Murillo Karam's conclusions, saying the investigation relied too much on witnesses in a country where authorities often get coerced confessions.
      
The case has sparked angry protests, engulfing President Enrique Pena Nieto in the biggest crisis of his administration.        

Parents of the students have refused to believe their sons are dead, saying they do not trust the authorities.