With the holiday break just around the corner, 21-year-old Mia Tretta was in her dorm with a friend studying for their final exams.
Just like other students at Brown University, she was distraught after receiving an active shooter alert from the university's department of public safety.
But the difference for her is she has lived through this once before.
Mia was shot in the 2019 mass shooting at Saugus High School in Santa Clarita, California.
She told the BBC it shattered her sense of safety and innocence.
