'It's devastating': Cop stayed outside during Florida massacre while students died

An armed school deputy rushed to the Florida high school building where terrified students ran from a killer with an assault rifle, but then sat outside for about four minutes and never went inside.
The school resource deputy for Marjory Stoneman Douglas High School, Scot Peterson, was under investigation for his response to the shooting but then decided to resign his post, Broward County Sheriff Scott Israel said Thursday.

 Source : kagstv