as a juvenile on one count of second-degree murder.
None of the others who were with the pair the night Bailey died are suspected of wrongdoing.
But prosecutors voiced frustration that Fucci's alleged plans to commit homicide were "not taken seriously" when he confessed them to "several" of his peers.
"Could this have been prevented? We can't be sure," Florida State Attorney RJ Larizza said, adding that the murder should serve as a cautionary tale to parents that they "need to know what your kids are doing and saying."
Larizza refused to disclose whether the killing was sexually motivated, or whether Tristyn had been sexually assaulted during the murder.
He did however disclose that investigators found Fucci's DNA on Bailey's body.
They also found Tristyn's DNA the shoes and t-shirt found in Fucci's bedroom, Larizza said.
Bailey was stabbed 114 times Credit: Facebook Her family reported her missing from their Florida home Credit: Fox News When pressed by reporters, Larizza said there is no evidence to suggest that Fucci suffers from any psychological conditions. He also said that the teen had no previous criminal history.
The state attorney said it "would be an understatement" to describe Tristyn's murder as "horrific."
"She was fighting for her life. It's just sad that we have to talk about that."
Tristyn Bailey’s ‘killer’ Aiden Fucci, 14, ‘stabbed cheerleader 114 TIMES’ as he’s tried as an adult, lawyer says