August 16 – Santos Guevara a.k.a. “Comandante Domínguez“, former leader of the Farabundo Martí National Liberation Front (FMLN) is arrested for shooting down a helicopter belonging to the United States military, killing the pilot and wounding two others during the Salvadoran Civil War.[5]
September – After the International Crisis Group suggested that El Salvador's recent decline in homicidies may be related to a pact between gangs and the government, Attorney Genral Raul Melara opens an investigation.[6]
September 11 – 1989 murders of Jesuits: Former colonel and vice minister for public security Inocente Orlando Montano, 77, is convicted in Spain for 133 years for "terrorist assassinations".[7]
September 15 – Independence Day: President Bukele calls for unity and attacks his political opponents in a speech before his Cabinet and the diplomatic corps.[8]