Griselda Blanco, the drug kingpin known for her blood-soaked style of street vengeance during Miami's "cocaine cowboys" era of the '70s and '80s, was shot to death in Medellin by a motorcycle-riding assassin Monday.

Blanco, 69, spent nearly two decades behind bars in the United States for drug trafficking and three murders, including the 1982 slaying of a 2-year-old boy in Miami.

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