Georgia school shooter hid an AR-15 in his backpack and left class the morning of the deadly rampageGeorgia school shooter hid an AR-15 in his backpack and left class the morning of the deadly rampage 

The 14-year-old shooter who confessed to killing four people at Apalachee High School was allowed to leave his classroom with his belongings before returning with a rifle in his backback, the Georgia Bureau of Investigation said Thursday.