The work included the installation of a red number 43 made of metal along with a plus symbol, in reference to the forty-three students kidnapped—and possibly killed—in Iguala, Guerrero, in 2014 after being arrested for allegedly committing criminal offenses, plus the six students and witnesses killed during that event, and to honor the more than 150,000 people killed since the start of the Mexican drug war and the 30,000 disappeared persons reported by 2015.

[1] The anti-monument was installed by peaceful protesters during a demonstration on 26 April 2015 as a plea for justice and to prevent the case from being forgotten by the authorities and society.

[2] On 26 September 2014, around 100 students of the Ayotzinapa Rural Teachers' College in Tixtla, Guerrero, left in buses towards Mexico City to take part in a protest for the anniversary of the Tlatelolco massacre (1968) on 2 October.

[3] The federal investigation, led by the attorney general of Mexico, Jesús Murillo Karam, concluded that the mayor of Iguala, José Luis Abarca Velázquez [es], and his wife, María de los Ángeles Pineda Villa, were holding an event that would be affected negatively by the students.

The mayor ordered their apprehension and they were subsequently handed over to members of the local drug gang, Guerreros Unidos, who killed them and disposed of their bodies in the nearby Cocula Municipality.

[9] During the seventh month of protests, on the afternoon of 26 April 2015, unlike the previous demonstrations, in which protesters walked through the streets demanding justice, organizers created a cultural festival in front of the National Lottery for Public Assistance building on Paseo de la Reforma Avenue, within the limits of downtown Mexico City.

Approximately 100 people gathered and were asked to create a human barrier as a truck arrived at the intersection of Reforma, Juárez and Bucarelli Avenues.

What is even more terrible is that every day the number of murdered and disappeared people increases, under the total impunity and responsibility of the Mexican State".

It means a political-aesthetic act of living memory and resistance that [enhances] the repertoire of recent protest in Mexico".