There appeared to be a fight in the parking lot prior to the deputy-involved shooting of suspect.
Investigators said the gunman was shooting into the crowd from behind the wheel well of his car.
It's not clear who that suspect might have been targeting.
Witness Ralph Banda said Johnny B's was packed, and as the night was ending, he says he heard gunshots and saw at least one deputy fire his gun.
RAW VIDEO: Investigators respond to deadly shooting at Johnny B's
Raw video: Fatal deputy-involved shooting
"We were with some friends and we went behind a brick wall," Banda said. "I told them to stay there until the gunshots were over."
In all, Banda said he heard as many as nine shots fired.
An EMS crew declared the suspect dead at the scene.
The suspect's name has not yet been released by officials.
As is standard procedure, the shooting will be reviewed by the Sheriff's and District's Attorney's offices.
No one else was hurt.
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