Colin Gray will spend 15 years in prison because he gave his troubled teenage son the rifle used to murder four people at Apalachee High School in Georgia. His son, Colt Gray, received life without parole two days earlier for killing students Mason Schermerhorn and Christian Angulo, both 14, and teachers Richard Aspinwall and Cristina Irimie. “In the beginning, he kind of struggled a bit,” Colin Gray told them. When asked if he had any firearms in the home, Colin Gray responded yes, but that none were loaded. Colt Gray committed the murders; Colin Gray helped place the rifle in his hands.