Mexico City, Mexico. 26th Dec, 2014. Thousands march to mark the three months since the disappearance of 43 Ayotzinapa's teaching college students in Mexico City on December 26, 2014. The 43 students went missing on Sept. 26 after confrontations in which police gunfire killed six people and wounded at least 25 in Iguala, in Guerrero state. Alexander Mora Venancio, one of the 43 missing students of Ayotzinapa, has been identified and confirmed dead by authorities. © Benedicte Desrus/Alamy Live News

- Image ID: ED50MP

Mexico City, Mexico. 26th Dec, 2014. Thousands march to mark the three months since the disappearance of 43 Ayotzinapa's teaching college students in Mexico City on December 26, 2014. The 43 students went missing on Sept. 26 after confrontations in which police gunfire killed six people and wounded at least 25 in Iguala, in Guerrero state. Alexander Mora Venancio, one of the 43 missing students of Ayotzinapa, has been identified and confirmed dead by authorities. © Benedicte Desrus/Alamy Live News

Benedicte Desrus / Alamy Stock Photo

Image ID: ED50MP

Location: Mexico City, Mexico