Colt Gray was given the gun he used to shoot dead four people at his Georgia high school as a Christmas present from his father months after they were questioned by the FBI over alleged threats. The 14-year-old was arrested on Wednesday at Apalachee High School in Winder, minutes after authorities say he opened fire on students and teachers. Law enforcement sources told CNN Thursday that the teenage shooter received the gun for the holidays this past December. His father Colin Gray has told authorities that he bought the gun for the boy himself as a Christmas gift. Colin Gray...