In 2019, a student at Saugus High School in Santa Clarita, California, opened fire on classmates. Two people were killed, and three others were injured. Mia Tretta, then 15, was shot in the stomach and lost her best friend. A few months ago, she spoke with the Center for American Progress about her experience and shared a message on how we must stay focused in the face of seemingly endless gun violence tragedies.