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An 18-year-old student meticulously planned a mass shooting at her high school in which she intended to die, authorities in Maryland said Monday.

A shotgun, ammunition and bomb-making materials including nails and fireworks were found at Nichole Cevario’s home in Thurmont on Thursday, Frederick County Sheriff Charles Jenkins said at a news conference.

There is no evidence that anyone else was involved, Jenkins said.

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Click link below for article and video:

http://www.nbcnews.com/news/us-news/maryland-teen-s-mass-shooting-plot-high-school-stopped-her-n739371

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