In the minutes after a gunman opened fire in a Florida high school, killing 17, frantic students and parents begin flooding 911 with calls

Staff and Wire Reports

FORT LAUDERDALE — In the minutes after a gunman opened fire in a Florida high school, killing 17, frantic students and parents begin flooding 911 with calls.

A deputy on the Marjory Stoneman Douglas High School campus first thought the loud bangs were firecrackers but quickly realized they are gunshots — yet he never ran toward them.

Other responding deputies and police officers desperately tried to sort through a chaotic scene, treat the injured, lock down the school and locate the shooter.

The Broward County Sheriff’s Office on Thursday released 12 minutes of radio transmissions from its deputies and neighboring Coral Springs police, along with recordings of 10 of the 81 calls its 911 center received during the Feb. 14 shooting. The sheriff also released a written timeline laying out how the radio calls correlated with what was seen on unreleased school security video.