Before she was shot in the stomach at Saugus High School, Mia Tretta volunteered at a Los Angeles food bank every year around Thanksgiving.
On Nov. 14, 2019, in the minutes before a bullet from a ghost gun hit her, Mia was on the phone with her mom, Tiffany Shepis-Tretta. They were trying to figure out a day Mia could skip school to pack boxes of food without missing a test. She was walking into class after being dropped off by her grandmother at the Santa Clarita campus.
So carefree, Tiffany thinks now, remembering her daughter as a freshman. So hard to think how small the problems were.
Seconds after Mia hung up, a fellow student pulled a .45 caliber semiautomatic — made from a kit sold by a still-operating internet business in Chula Vista — and fired into the quad.
He killed two…
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