Judge Nicholas Primm, who also sentenced Colt Gray, was blunt in addressing the elder Gray: “It is clear you failed as a parent.” A jury in March found Colin Gray guilty of second-degree murder in the deaths of two 14-year-old students, Mason Schermerhorn and Christian Angulo. Prosecutors said Colin Gray gave his son the rifle as a Christmas gift along with ammunition, a gun sight and other shooting accessories. Smith countered that Colin Gray ignored “a substantial and unjustifiable risk.” Like Colin Gray, they were unaware of their son’s plans but had gifted him a gun before the shooting.