Parkland shooting: Armed school resource officer ‘never went in’ to school during shooting

An armed security officer on campus where a gunman killed 17 people never went inside the high school or tried to engage the gunman during the attack, a Florida sheriff said Thursday.
That officer has now resigned.
“I think he remained outside for upwards of four minutes,” Broward County Sheriff Scott Israel said during a news conference Thursday afternoon.
Scot Peterson, a sheriff's deputy assigned to the school, "was absolutely on campus through this entire event. He was armed, he was in uniform," Israel said.

 Source : nbcnews