In the twelve months since the bodies were found Mexican law enforcement agents arrested over twenty suspects including the alleged coordinator of the mass kidnapping and assassinations. Nonetheless, Guatemalan officials called on their Mexican counterparts to continue their investigative work including attempts to identify thirteen bodies.
According to EFE (via Mexico's El Universal):
"The Ministry of Foreign Affairs has requested that Mexican authorities do not conclude their investigation" over the possibility that more Guatemalans may have been victims of the massacre...Numerous human rights groups and immigrants rights activists were more direct in their criticism of Mexican authorities in the months since the massacre. "We will not allow this massive crime against humanity to join others in which impunity and indifference have prevailed," according to a statement emitted on Tuesday by several non-government organizations in Mexico.
(The Guatemalan Embassy in Mexico) observed that since the San Fernando massacre "there has been a rapid deterioration of the security in the Guatemalan migrant community in Mexico" including numerous kidnappings and two more mass killings in northern Mexico.