"four counts of involuntary manslaughter, two counts of second-degree murder"

[Jim__]

6. "Georgia officials have provided little detail about what led them to target Gray ..."

I don't think we know yet. From The Washington Post

The counts against Colin Gray — which include second-degree murder — are the most severe ever filed against the parent of an alleged school shooter, and the speed at which they were leveled — less than 36 hours after the last shot was fired — is without precedent.

Georgia officials have provided little detail about what led them to target Gray, beyond alleging that he “knowingly” allowed his son, Colt, to access the AR-15-style rifle that investigators say the teen used in his attack. A year ago, local police interviewed both of them about alleged online threats the teen had made to shoot up a school, accusations that Colt denied at the time. Gray told the investigators that he had “hunting guns” but that his son didn’t have “unsupervised access” to them.