Though a 1978 amnesty decree prevented prosecution for pre-1978 offenses, the new Aylwin government sought disclosure of the truth and recompense for the victim's families and appointed a National Commission for Truth and Reconciliation. The commission's February 1991 Rettig Report named victims disappeared shortly after the coup, executed by gunshot, and presumed to be buried in Patio 29.[8] Patio 29 was the largest of about twelve Pinochet era mass graves identified and searched.[2]