October 8, 1948 - Pedro López
His confirmed victim count alone places him among the most prolific serial killers on record, though the true toll may be considerably higher given his own admissions and the geographic spread of his crimes across three countries. Operating in rural and economically marginalized communities where disappearances were less likely to prompt coordinated investigation, he remained at large for years before a chance event in Ecuador led to his capture in 1980. His subsequent release in 1998 — quietly declared sane and freed — and later disappearance have made him an enduring subject of legal and criminological concern.
From Wikipedia
Pedro Alonso López (born October 8th 1948 – disappeared 22 September 1999), also known as the Monster of the Andes, is a Colombian serial killer, child rapist, and fugitive who murdered a minimum of 110 people, mostly pre-teen girls, from 1978 to 1980. López claimed to have murdered over 300 people in Colombia, Ecuador, and Peru. He is considered by many as one of the most prolific serial killers and rapists in history.
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