Jose Campos was convicted of the first-degree murder of Adrian Rios in a Riverside County court Thursday. The jury took less than a day to convict Campos.
Rios, who was 17 at the time of his death, was murdered after he watched a football game at Campos' home Nov. 15, 2009. It was reported that the boys had also been drinking and smoking marijuana that night.
During the trial, Campos admitted to burning Rios' body, but claimed that another friend shot Rios. That friend pleaded guilty to being an accessory in the murder.
Campos is set to be sentenced Dec. 16.
The Associated Press contributed to this report.