For at least two students at Brown University, this was not their first mass shooting. One of them, Mia Trea, was just 15 when she was shot in the abdomen by a student who opened fire on his Santa Clarita High School. Her best friend was killed that day.Now she is a junior at Brown faced again with the trauma of school violence. She posted on X last night that this is not how she imagined life when she was a little girl, that she misses that carefree child she once was. Mia joins me now.Uh, thank you for be ...