
People march Monday, January 26, during a protest in Mexico City for the 43 college students who went missing four months ago in the Mexican state of Guerrero. A day later, Mexican Attorney General Jesus Murillo Karam said there is "legal certainty" that the students "were abducted, killed, burned and thrown into the San Juan River, in that order." At least 99 suspects have been detained so far.

People march January 26 in Mexico City. The students attended Escuela Normal Rural de Ayotzinapa, a rural teachers college known for its political activism.

Hundreds of police officers in riot gear block a street during several marches in Mexico City on January 26.

A masked protester waves a Mexican national flag during protests in Mexico City on January 26.

A man smashes the window of a traffic patrol vehicle during a protest in Chilpancingo, Mexico, on Thursday, January 15.

Military police spray tear gas during a protest in Iguala, Mexico, on Monday, January 12.

A man burns an effigy of Mexican President Enrique Pena Nieto during a protest in Mexico City on Wednesday, December 31.

Hundreds of residents of Ayutla, Mexico, and parents of the missing students participate in a protest on Wednesday, December 17.

People gather during the protest in Ayutla on December 17.

Riot police confront protesters near the airport in Mexico City on Thursday, November 20.

A protester holds up a poster parodying Pena Nieto during a rally in Mexico City on November 20.

A woman holds flowers and a candle during the November 20 demonstration.

Police guard the National Palace in Mexico City as protesters and police clash on November 20.

Demonstrators clash with riot police on November 20.

An injured protester gets first aid on November 20.

People on the base of a monument watch and cheer on marchers in Mexico City on November 20.

A protester cries as police attempt to detain her and human rights observers try to reach her during a march near the Mexico City airport on November 20.

A protester lights a firework as demonstrators march on November 20.

Riot police surround protesters who had thrown Molotov cocktails and destroyed vehicles in Mexico City on November 20.

A police officer falls after a protester threw a Molotov cocktail on November 20.

Protesters gather November 20 at the Angel of Independence monument in Mexico City.

Students place school desks with photos of the missing students in a plaza at Mexico's National Autonomous University on November 20.