of Justice of Brazil ruled in favor of archiving the criminal suit against the six men, citing that it was not possible to characterize the attack as a crime against humanity and that the suit was in violation of Article 5 of the Constitution, which prohibits ex post facto enforcement of the law. See also Military dictatorship in Brazil Missão 115, a 2018 documentary on the attack References Works cited 1981 in Brazil Military dictatorship in Brazil False flag operations External links Brasil Escola article Four volumes of the Military Police Inquiry reports on Riocentro