Alonso Ríos Mairena
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Alonso Ríos Mairena, infamously dubbed the 'Monstruo de Liberia,' is a convicted murderer who gained notoriety for the brutal killings of five university students in Costa Rica. His heinous crimes led to a 216-year prison sentence, marking him as one of the most infamous criminals in the nation's history.
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Alonso Ríos Mairena, known as the Monstruo de Liberia, was sentenced to 216 years in prison for the murder of five university students.
Juez que sentenció al ‘Monstruo de Liberia’ vuelve a enfrentar al abogado que lo defendió en juicio por muerte de 5 estudiantesLa Nación – main Costa Rican daily, est. 1946·
Costa Rica· 2026-03-01
Costa Rica· 2026-03-01
