Georgia investigators looking for answers on school shooter’s access to gun, motive

Investigators in Georgia on Thursday sought to piece together how a teenager obtained the assault rifle he allegedly used to carry out a mass shooting at his school and whether there were any additional warning signs after authorities visited his home a year ago.

The student, identified as Colt Gray, 14, opened fire on Wednesday with an AR platform-style weapon at Apalachee High School in Winder, Georgia, killing two students and two teachers and wounding nine, law enforcement officials said.