Tristyn Bailey

Watch Video Footage: Tristyn Bailey was killed after being stabbed over 100 times.

Aiden Fucci trial: Florida teen charged as adult in 13-year-old Tristyn Bailey’s murder pleads guilty. Tristyn Bailey, 13, was found dead with 114 stab wounds and a piece of the knife chipped off in her skull.

A Florida teen charged in the grisly murder of a 13-year-old classmate, found dead near a pond with dozens of stab wounds, pleaded guilty to murder Monday.

It would have been the first day of jury selection for his trial, court documents show, two years after an early court appearance where he allegedly mumbled about demons taking his soul.

Tristyn Bailey, a cheerleader at Patriot Oaks Academy, was last seen on surveillance video walking with her killer, Aiden Fucci, on May 9, 2021 in St. Johns County. He also attended the school.

An hour later, the same camera captured Fucci walking away alone.

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Tristyn Bailey

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Police later discovered her remains with 114 stab wounds and a piece of the murder weapon broken off in her skull, according to authorities. Her body was about .3 miles from Fucci’s house, according to the police report. They found the rest of the knife ditched in a pond nearby and arrested the suspect on May 10.

When they questioned Fucci, he offered changing stories and eventually admitted to having been with Tristyn the night she vanished and getting into an argument with her, court documents show.

Fucci told police he shoved her to the ground and left. When they served a search warrant on his bedroom, they found clothes similar to what he was seen wearing in the surveillance video – with blood on them.

Fucci, who was 14 at the time and charged as an adult, changed his plea on the same day jury selection was scheduled to begin in his murder trial. Despite his youth, he was listed at the time of his arrest as 5 feet, 11 inches tall and weighing 180 pounds.

Shortly after arriving for jury selection in a first-degree murder trial Monday morning, Fucci’s defense entered the guilty plea.

Evidence against him includes more than 100 pages of emails from a school resource officer.

In one, obtained by WJXT-TV, the officer relayed Fucci’s friend claimed the slaying was “100% premeditated” and that the teen had spoken about wanting to kill something in the woods.