Kim was accused of the March 13, 2004, shooting at the 5th Wave Café in Cypress. Kim was convicted of fatally shooting Venus Hyun, 21, in the back, and of wounding four others at the scene. Kim had thought one of the victims was affiliated with a gang whose members had beaten him up.
Prosecutors are expected to seek the death penalty for Kim. Wednesday begins the penalty phase of the trial. Jurors will recommend either the death sentence or life in prison with no chance of parole.
Six co-defendants face the same charges as Kim. Prosecutors made deals with the six, who testified against Kim.
Kim's defense attorney contended Kim was not the shooter, and that the only people to witness him at the scene were the co-defendants receiving deals.
The six co-defendants are due back in court March 25.
City News Service contributed to this report.