Gary Alton Asberry was convicted of first-degree murder and attempted murder.
Asberry, 20 at the time, along with two other gang members, shot brothers Andrew and Christopher Gonzales after a verbal altercation near the Fastrip store on 34th Street. Christopher Gonzales died.
The Kern County prosecutor's office didn't say what the status is for the other gang members involved in the shooting.
Asberry is slated for sentencing in August and faces life in prison without the possibility of parole.