A Fresno County jury on Thursday found 19-year-old Jarrad Beard guilty for the December deaths of 18-year-old Justin Hesketh and 16-year-old Brandon Moore.
Beard's 16-year-old brother Jerry Beard was only convicted for Hesketh's death.
The Fresno Bee ( http://bitly.com/RJip0L) says Jarrad Beard faces 33 years in prison and Jerry Beard faces 21 years when sentenced on Dec. 11.
Hesketh and Moore were in a pickup truck when the Beard brothers became upset when Hesketh flicked a cigarette at them.
A shot was fired at the pickup and Hesketh and Moore chased the brothers on foot into an apartment complex where they were killed.
Defense attorneys argued self-defense.
Information from: The Fresno Bee, http://www.fresnobee.com