An 18-year-old Indiana high school student has been arrested for allegedly plotting a mass shooting at Mooresville High School on Valentine’s Day. Authorities say the teen, Trinity Shockley, had been planning the attack for over a year, idolizing past mass shooters and collecting disturbing materials related to school violence.

The investigation began after a tipster contacted the FBI, warning that Shockley had access to an AR-15 rifle and had recently ordered body armor. When police searched her home, they found a chilling collection of photographs featuring mass shooters, handwritten notes with violent threats, and a journal filled with drawings of weapons and phrases like “KILL KILL KILL.”
Shockley allegedly expressed admiration for Nikolas Cruz, the gunman responsible for the 2018 Parkland, Florida, school shooting—an attack that also took place on Valentine’s Day. Authorities fear she may have been planning to replicate the tragedy on its anniversary.
When confronted, Shockley claimed she was “just joking” about carrying out the attack but admitted to feeling isolated and bullied. She also revealed past struggles with mental health and an injury from a 2022 car accident that left her with long-term trauma.
Now facing charges of conspiracy to commit murder and making terroristic threats, Shockley is being held without bond as investigators work to determine the full extent of her plans.
This chilling case has reignited concerns over school safety and the role of mental health support in preventing violent acts. With many unanswered questions, authorities continue to dig deeper into what could have been a devastating tragedy.