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20 dead, including students and teachers in shooting at Texas elementary schoolMay 24, 2022 -
Norwalk High School placed under lockdown again due to threatDecember 8, 2021 -
Threats close, lock down high schools across CTDecember 6, 2021 -
Investigation at Platt High School in MeridenNovember 30, 2021 -
Gender reveal party sends Tennessee schools on lockdown fearing active shooterSeptember 3, 2021