Panic buttons and phone alerts: How technology helped prevent further bloodshed at Apalachee
By Chelsea Bailey, Lauren Mascarenhas, Isabel Rosales and Jaide Timm-Garcia, CNN (CNN) — Apalachee High School teacher Stephen Kreyenbuhl knew something was wrong Wednesday before he heard gunshots. The social studies teacher told CNN he was in the middle of a lesson when his smartboard alerted that the school was in a “hard lockdown.” “In
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