Police in Mooresville, Indiana, later arrested 18-year-old Trinity Shockley. They say Shockley confessed to plotting to murder their best friend and to conduct a school shooting on Valentine's Day.

New information from Wisconsin shows how investigators tracked the alleged threat to an 18-year-old Mooresville student.

An 18-year-old transgender teenager has been arrested in Indiana for allegedly plotting a mass shooting at Mooresville High ...

A transgender high school student in Indiana is accused of planning to kill masses of students on Valentine's Day in what she ...

A transgender teen who was allegedly planning a mass shooting on Valentine’s Day in Indiana had an “obsession” with Nikolas ...

After allegations surfaced against a Mooresville High School student arrested for planning a school shooting, WRTV spoke with Nicole Hockley, co-founder of Sandy Hook Promise.

An Indiana teen who had an “obsession” with the school shooter who murdered 17 people exactly seven years ago is accused of ...

A tipster claimed Trinity Shockley, 18, “has access to an AR15 and has just ordered a bulletproof vest,” NBC News reports, ...

Authorities said Thursday they caught a teenager who identifies as transgender allegedly discussing plans for a school ...

An 18-year-old from Mooresville is facing charges for allegedly planning a mass school shooting at Mooresville High School.

A high school student in Indiana is accused of planning to kill masses of students at his school on Valentine’s Day.

The Washington County Sheriff's Office in Wisconsin may have helped prevent a murder and a school shooting in Indiana. The school is in Mooresville, Indiana. The ...