A beloved special-education teacher’s life was cut short in Sunday’s mass shooting in Las Vegas — devastating her entire school, according to reports.

Students and staff at Manhattan Beach Middle School in California learned Monday morning that teacher Sandy Casey was among those killed when a gunman opened fire at a Vegas country music festival, the Daily Breeze reports.

“Our students, employees, and parents are devastated by Sandy Casey’s death. We lost a spectacular teacher who devoted her life to helping some of our most needy students,” Superintendent Mike Matthews told the paper.

Several other teachers from the school were attending the Route 91 concert with Casey, but they survived the shooting, the paper reports.

“It’s been a tough day here at the school. We’re having an extended lunch so the staff can support each other. We’ve had counselors available all day and they’re being utilized not just today, but for some time in the foreseeable future,” Matthews said.

Casey wasn’t the only Manhattan Beach resident lost in the massacre — Rachael Parker, a civilian employee of the local police department, was also killed while attending the fest with three colleagues, the Daily Breeze reports.