Rey Pardellas was one of the leaders of the 181st Communications Battalion in the Argentine city of Bahía Blanca. He was in charge of repression in area 511, a clandestine detention center established by the dictatorship that began in 1976.

The same day it was learned that the president of Uruguay, Lacalle Pou, ordered the elimination of the term “state terrorism” from secondary educational programs to refer to the dictatorship. The next day, an Argentine newspaper reported on the massive call for the 8M march.