Gunman believed to be a 14-year-old in Georgia school shooting that left at least 4 dead, source says CNNLive updates: Apalachee High School shooting leaves at least 4 dead CNNGeorgia lawmaker for district including Winder reacts to ‘heartbreaking’ school shooting Fox News4 Killed, 9 Hospitalized in School Shooting in Georgia, Suspect in Custody PEOPLEAlapachee High School Shooting: Community offers support, prayer services scheduled FOX 5 Atlanta