CNN:
The school was not in lockdown until he shot.
From myajc.com (https://www.myajc.com/news/dalton-l...-safe-before-shooting/s2meH6LQCXTMjy1rmSd07M/)
A bit of a nut case who didn't want students in his class. This wasn't an attempt to protect anyone.
The incident began about 11:30 a.m. when Randal Davidson, a 53-year-old social studies teacher, refused to let students into his classroom while he was in his planning period, Frazier said. When the principal put a key in the door in an attempt to enter, Davidson fired a shot from a handgun through an exterior window of the classroom, Frazier said.The school went into lockdown, and police quickly arrived and evacuated the immediate area around his classroom. After about 30 to 45 minutes, Davidson agreed to surrender and was taken into custody without further incident, Frazier said.
The school was not in lockdown until he shot.
From myajc.com (https://www.myajc.com/news/dalton-l...-safe-before-shooting/s2meH6LQCXTMjy1rmSd07M/)
In March 2016, a Dalton Police Department report says, he told police a bizarre story about tangential involvement in a murder. Police couldn’t confirm either the story or the existence of the alleged victim, and concluded that he may have been “delusional or have something else that had occurred that is causing him to have these thoughts.” They took him to the hospital because he was “thinking about harming himself.” Davidson told police he was on several medications for depression, the report said.
Then, in January 2017, he told a supervisor he felt ill and left the school. Police were called and a search ensued because he hadn’t driven to work that day and had called his son to pick him up, but he was gone when the son arrived, the police report said. He was found at a nearby intersection, in no obvious physical distress yet incommunicative: “No amount of stimulus would draw a response from him,” the officer wrote in the report. An ambulance took Davidson, a social studies teacher, to the hospital.
A bit of a nut case who didn't want students in his class. This wasn't an attempt to protect anyone.