NEW INFO from Dalton High School:
- Teacher wouldn’t let students into classroom
- When principal tried, teacher fired shot out exterior window
- School went into lockdown, was evacuated
- After 30-45 minutes, Davidson surrendered w/out incident

UPDATES - https://t.co/qiR7DrXcn2 pic.twitter.com/FZEkbvMuo7

— WSB-TV (@wsbtv) February 28, 2018