Mercedes del Carmen Letona
Acting·September 24, 1954 — 71 years old·Turín, El Salvador
Mercedes del Carmen Letona Pérez (September 24, 1954, Turín, Ahuachapán Department, western El Salvador), known as Commander Luisa, was a Salvadoran guerrilla fighter. Sister of Lilian Mercedes Letona, known as Comandante Clelia.