Boyacá necklace bomb incident
The Boyacá necklace bomb incident was an extortion attack that took place on 15 May 2000 in Chiquinquirá, in the Boyacá Department of Colombia. A woman named Elvia Cortés was killed after assailants locked an explosive device around her neck and demanded a ransom.
Source: Wikipedia — Boyacá necklace bomb incident (CC BY-SA 4.0)