Panic buttons and phone alerts: How technology helped prevent further bloodshed at Apalachee

Panic buttons and phone alerts: How technology helped prevent further bloodshed at Apalachee

By Chelsea Bailey, Lauren Mascarenhas, Isabel Rosales, 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 that instance, I knew something emergency-wise was about to happen,” Kreyenbuhl said. “I got everybody into a …