The father of the 14-year-old accused of fatally shooting two students and two teachers at his Georgia high school Wednesday has now been arrested alongside his son. Colin Gray, 54, was arrested Thursday and is charged with two counts of second-degree murder, four counts of involuntary manslaughter, and eight counts of cruelty to children, the New York Times reports. The director of the Georgia Bureau of Investigation said the charges are “directly connected with the actions of his son and allowing him to possess a weapon.” It’s still not clear how the alleged school shooter got the gun used i…