A teenage girl, accused of conspiring to kill a fellow student and reportedly mocking the incident with her accomplice, allegedly penned a remorseful note to her parents.

“Dear Mama & Papa. I’m sorry for what I’m gonna do,” 15-year-old Isabelle Valdez purportedly wrote in the letter obtained by Oxygen from the Florida State Attorney’s Office. “I hope you find this note. It’s important for you to understand that none of this is your fault or anyone else’s. I made this choice on my own, for myself, and in the spirit of Adam Lanza.”

Valdez, who is accused of orchestrating the murder scheme with her 14-year-old friend, Lois Lippert, expressed admiration for her parents while taking responsibility for her actions.

“I want you to know you were the most perfect parents ever,” she continued. “I’m sorry for not being a better child. I’ve sensed something was off with me since I was young. I just hid it, and I apologize. I never really was shy; I simply loathed people and was aware of their unpleasant nature. Being forced to socialize felt torturous. I pretended to enjoy socializing to make you happy because your happiness was one of the few things that brought me joy.”

Valdez concluded by admitting, “Over the years, I have lost control of myself and my emotions. Any time I said I hated you, it was a complete lie. I regret ever causing you pain, and I accept the consequences for my actions, knowing I’m also flawed, cruel, and worthless.”

The note remains unsigned and undated but was discovered in Valdez’s backpack, according to the state attorney’s office. Both girls, who face adult charges, have pleaded not guilty, as noted in court documents.

In January, Valdez and Lippert were arrested in Seminole County, after police received an anonymous tip that Valdez planned to kill a fellow classmate at Lake Brantley High School in Altamonte Springs, according to a motion for pretrial detention document previously reviewed by Oxygen.

Valdez was allegedly motivated to kill her classmate, authorities wrote in the motion, because he reminded her of Sandy Hook School shooter Adam Lanza. 

The plot, as outlined in the motion, involved a “blood ritual” in the boys’ bathroom during which the victim would either be stabbed or have his throat sliced with a 12-inch knife.  

Lippert’s alleged role, per the motion, would be supplying flowers for the boy’s funeral and bringing gloves, cigarettes and a lighter to the crime scene. Lippert allegedly drew “graphic and disturbing” images of the boy, depicting him in violent and sexual scenarios. 

Footage shot from the backseat of a police car that was released by the Office of the State Attorney 18th Judicial Circuit and published in media outlets such as WKMG News 6, depicted the teens laughing and discussing makeup options for their mugshots. “This is such a bonding experience,” Lippert told Valdez in the video. 

“I was going to do my makeup this morning for the mugshot,” Valdez said in the footage. “But I couldn’t find anything.”

She continued, “I don’t feel guilty for my actions.” 

In the footage, Valdez also disclosed that she wrote a note to her parents. 

The teens are charged with six crimes, according to court records reviewed by Oxygen, including attempted first-degree premeditated murder and possession of a weapon on school property. 

Valdez and Lippert remain in custody without bond until their trial, according to a March 12 update from the Office of State Attorney William Scheiner. 

The teens next court appearance is April 29. Attorneys for Lippert and Valdez did not immediately respond to a request from Oxygen.