 The change of administration in Spain in 1982 did not affect his collaboration with underground dirty war efforts against ETA and therefore with the Grupos Antiterroristas de Liberación (GAL), the new denomination of the death squads that operated in France during the Spanish Socialist Workers' Party administration in Spain.Cherid died on March 19, 1984 in an explosion which happened during the manipulation of explosives destined to attempt to assassinate the ETA's executive committee.An authorization belonging to the Guardia Civil information services was found among his remains.