MOORESVILLE, Ind. —

A 19-year-old Indiana woman who admitted to planning a mass school shooting will be spending the next decade behind bars.

Trinity Shockley was sentenced to 20 years, with eight suspended and 12 to be served in prison, followed by five years of probation.

Shockley pleaded guilty to one count of conspiracy to commit murder.

Police received an anonymous tip in February that Shockley was planning a shooting at Mooresville High School on Valentine's Day. Mooresville is southwest of Indianapolis.

During the hearing, Shockley apologized and spoke about being bullied.

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