San Diego County officials identified four of the jet’s six occupants killed in the crash and ensuing fire. One was 42-year-old music agent and certified pilot David Shapiro, who owned the company to which the Cessna 550 Citation II was registered.

The San Diego County Medical Examiner’s Office identified two more people who died after a small plane crashed in the Murphy Canyon neighborhood early Thursday morning.

From a music exec to photographer to martial artist, more is being learned about the lives lost in the early morning crash that took six lives.