the gbi has arrested Colin Gray age 54 in connection to the shooting here at appalachi high school Colin is Colt Gray's father that was arrested yesterday breaking news the father of the Georgia school shooting suspect is being charged with murder and other charges 54-year-old Colin Gray will face four counts of involuntary manslaughter two counts of second deegree murder and eight counts of Cruelty to children that's according to the gbi his son 14-year-old Colt gray is charged with murder after investigators say he killed four people in a shooting at appalache high school on Wednesday the gbi says the charges stem from Colin Gray knowingly allowing his son to possess a weapon