Jurors heard opening statements Tuesday in the murder trial of a teenager who is accused of gunning down a gay classmate execution-style in their southern California junior high school classroom in 2008.

Brandon McInerney, who was 14 at the time of the shooting, is being tried as an adult on charges of first-degree murder, use of a handgun and a hate crime, said Ventura County Chief Deputy District Attorney Mike Frawley.

After the first shot, Lawrence King fell to the ground, and McInerney allegedly stood over him and shot again, Frawley said.