One day after a mass shooting at a high school in South Florida, a 6th grade student from nearby Nova Middle School was arrested after she wrote and placed a note beneath the door of the assistant principal’s office that claimed she would shoot students and teachers, according to authorities.

“I will bring a gun to school to kill all of you ugly ass kids and teachers bitch,” the note read, according to CBS Miami. “I will bring the gun Feb. 16,18. BE prepared bitches!”