Post-ethnography pursues “micro-occurrences” and visual findings that have taken place in Tijuana in the past 28 years. These photographs show an iconography of white crosses, skulls, empty water jugs and cempasúchil flowers. Postphotography helps redimension this ethnographic evidence. Thus, the photo-essay speaks of sociocultural and artistic guerrillas against the strategic oblivion promoted by the governments of the U.S. and Mexico towards the deaths of migrants and the border walls as necro-artefacts in which art, solidarity and memory meet.

This article is concerned with presenting the murals about the young people who disappeared in the Orizaba-Córdoba region of the state of Veracruz, where forced disappearance has been a serious problem for years. The work elaborated by the artist Aldo Daniel Hernández, Fise, is analyzed as an act of resistance by the mothers of the Collective, as a struggle against oblivion and impunity, placing it in its context and analyzing the reactions of authorities and society. The analysis is based on the theoretical framework of the sociology of art proposed by García Canclini (2006) and taken up by Salazar (2011) for murals in Ciudad Juárez, focusing on the organizational process for the creation of such works, the ideological framework that may have conditioned them and the visual discursive strategies applied. A discursive struggle becomes visible between victims who seek to make injustice visible and preserve memory and other actors who seek to silence them.