A substitute teacher was arrested for allegedly triggering false active shooter alerts. This incident occurred at five schools and prompted security responses. Authorities took action against the substitute teacher, who is accused of causing the false alerts.

The incident led to a significant response from security personnel across the district. The substitute teacher's actions were reported to have affected five schools.

Further details about the incident and the arrest are available from the source. The investigation and response to the false alerts are known to have involved authorities and school district security.