After a Sept. 4 school shooting at Apalachee High School in Winder, Georgia left 4 dead and 9 wounded at the hands of a 14-year-old, gun violence and solutions to school shootings surged once again to the top of national conversation.Colt Gray, who was investigated for posting online threats of a school shooting last year, has been charged with four counts of murder in the case. His father Colin is also facing charges of involuntary manslaughter and second-degree murder for allowing his child to have a weapon. >Only recently have parents of school shooters been held responsible for their children’s...