In this Dec. 2, 2015 photo, Guerrero State Police patrol in Iguala, Mexico. Authorities disbanded the local police force that allegedly turned 43 students over to the Guerreros Unidos drug cartel, which authorities say was closely allied with former Iguala Mayor Jose Luis Abarca Velazquez. The parents of the 43 students continue to demand to know what happened to their sons. (AP Photo/Dario Lopez-Mills)
In this Tuesday, Oct. 20, 2015 photo, a dirt road leads to a field where the body of Carlos Sanchez was found along with dozens other bodies on Dec. 2014 overlooking the city of Iguala, Mexico. Carlos was last seen being taken away by state police as his relatives were taking him to a hospital after he had been shot by a pair of teenagers. His relatives were also kidnapped but some were freed. The 36-year-old taco vendor was tortured and beaten until he died. His body was found in an unmarked grave in the mountains outside Iguala in December 2014, by families of the other disappeared. (AP Photo/Dario Lopez-Mills)
In this Oct. 2, 2015 photo, a portrait of Carlos Sanchez hangs in the center of a small makeshift altar set up in a corner of his home in the town of Teloloapan, Mexico. It was April 2, 2013. The 36-year-old taco vendor had just been shot by a pair of teenagers inside his home. His cousin, wife and sister were with him as they were trying to take him to Iguala, after the hospital in Teloloapan refused to help him, offering only basic first aid. Just 10 minutes before arriving into Iguala their lives dramatically changed after a Guerrero state police truck aimed its spotlight on them from the highway’s shoulder. Carlos’ body was found in an unmarked grave in the mountains outside Iguala in December 2014, by families of the other disappeared. His skeleton was intact inside a sleeping bag. The hospital robe, IV and oxygen tube that were administered to him at the hospital were in the grave with him. Armando de la Cruz, his cousin is still missing.(AP Photo/Dario Lopez-Mills)
In this Oct. 20, 2015 photo, flowers grow in a field where the body of Carlos Sanchez and dozens other were found almost a year ago on the outskirts of the city of Iguala, Mexico. It was April 2, 2013 when Sanchez and other relatives were taken by state police. His body was found a year later by other families looking for their missing relatives. His case is suspected to be one of the many so-called “forced disappearances” at the hands of authorities. An independent panel of experts sent by the Inter-American Commission on Human Rights to review Mexico’s investigation of the Sept 2014 students’ disappearances was told by the attorney general’s office that among 148 recent disappearances besides the 43 students, about one in five were allegedly at hands of authorities. In most cases, families did not know the circumstances of their loved one’s disappearance so the actual figure is likely higher. (AP Photo/Dario Lopez-Mills)
In this Oct. 2, 2015 photo, a child walks past a gate near his home as the day ends in the town of Teloloapan, Mexico. It was April 2, 2013. The 36-year-old taco vendor had just been shot by a pair of teenagers inside his home. His cousin, wife and sister were with him as they were trying to take him to Iguala, after the hospital in Teloloapan refused to help him, offering only basic first aid. Just 10 minutes before arriving into Iguala their lives dramatically changed after a Guerrero state police truck aimed its spotlight on them from the highway’s shoulder. Carlos’ body was found in an unmarked grave in the mountains outside Iguala in December 2014, by families of the other disappeared. His skeleton was intact inside a sleeping bag. The hospital robe, IV and oxygen tube that were administered to him at the hospital were in the grave with him. Armando de la Cruz, his cousin is still missing.(AP Photo/Dario Lopez-Mills)
In this May 26, 2015 photo, Jaime Velazquez Betancourt holds up a photo of his son, Jorge Alberto Garcia Valverde, left, and his daughter, Adilene Garcia Valverde in Iguala, Mexico. On June 29, 2012, Jaime Velazquez Betancourt’s son and daughter were just minutes from their home in Cocula returning from dinner with a friend. Witnesses said that between 9:30 and 10 p.m. two Iguala police vehicles stopped them. They took 19-year-old Adilene Garcia Valverde and 21-year-old Jorge Alberto Garcia Valverde along with their friend. None of them have been seen since. The Iguala police told Velazquez they had no record of the arrests and did not have patrol cars in that area that night. (AP Photo/Dario Lopez-Mills)
Marcos Javier Mejia Mazon holds up a photo of his brother, Angel Alberto Mejia Mazon in Iguala, Tuesday, Aug. 18, 2015. Angel Alberto was at Iguala’s annual fair in February 2013 with a group of friends when he got into a fight with a stranger. Suddenly an Iguala police truck pulled up and arrested the 19-year-old Angel, a student and waiter, said his brother Marcos. The other guy was let go. Angel’s friends suspected he had simply tangled with the wrong stranger. His grandfather went to the police station to look for him, but was told they had no record of his arrest. (AP Photo/Dario Lopez-Mills)
Maria del Carmen Abarca holds up a photo of her husband, Saturno Giles Beltran in Iguala, Mexico, May 13, 2015. Saturno, 47, was an Iguala police officer in the department’s stolen vehicles unit. It quickly became apparent to the retired soldier that he was the only clean officer in his unit. He warned his wife and daughters to avoid certain parts of Iguala where police took women and told them never to come to the police station. He was taking classes for a law degree on weekends, promising his wife, that he would leave the police force as soon as he earned his degree. He disappeared on March 8, 2014, driving to class. He called the next day and without specifying who, said they had allowed him a phone call. He said he was clearing up some questions so he could come home. That was the last his wife heard from him. She fears word got out in the police department that he was going to leave and someone decided not to let him. (AP Photo/Dario Lopez-Mills)
In this Oct. 2, 2015 photo, images of Armando De la Cruz Salinas, some pasted on a father's day poster lie on a table at his home in Teloloapan, Mexico. The only thing Salinas wanted on April 2, 2013, was to take his cousin, Carlos Sanchez, to the hospital so he’d be saved after he was shot by a pair of teenagers. On the road to the hospital in Iguala, Salinas was temporarily blinded as a Guerrero state police truck aimed its spotlight on them from the highway’s shoulder. Before he could react a man in the dark uniform of the state police opened the front passenger door and dragged Carlos’ sister out. He leaned her over the trunk, handcuffed and frisked her.
A passing ice truck paused, the cop yelled, “it’s not your problem,” and it drove on. That was the last time Salinas was ever seen alive. Carlos’ body was found in an unmarked grave in the mountains outside Iguala in December 2014, by families of the other disappeared. (AP Photo/Dario Lopez-Mills)
In this Tuesday, Oct. 3, 2015 photo, a dead spider hands from it's web on the side of a stretch of road leading to the city of Iguala near the site where Carlos Sanchez was last seen after being taken away by state police as his relatives were taking him to a hospital when he was shot by a pair of teenagers. His relatives were also kidnapped but some were freed. The 36-year-old taco vendor was tortured and beaten until he died. His body was found in an unmarked grave in the mountains outside Iguala in December 2014, by families of the other disappeared. (AP Photo/Dario Lopez-Mills)