An 18-year-old woman suspected of making threats to Denver-area schools has been found dead, US media report.
Sol Pais was reportedly obsessed with the 1999 Columbine high school massacre, in which two teenagers murdered 12 students and a teacher.
The alleged threat led to school closures for half a million students and a manhunt for the Florida woman.
She allegedly travelled to the state and bought a shotgun ahead of the 20th anniversary of the Columbine shooting.
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