Brandon McInerney was sentenced to 21 years in jail on Monday for the 2008 brutal slaying of his gay classmate, Larry King.

McInerney was 14 when he pulled a gun from his backpack and shot King, 15, twice in the back of the head, later claiming that he believed the boy was flirting with him.

The Oxnard teen has already served four years behind bars and reached a plea deal with authorities that guarantees he will be released from jail by the time he is 38.