Runway lights and an automated system that provides weather conditions were out of operation at Montgomery-Gibbs Executive Airport before a Cessna crashed into a San Diego neighborhood amid foggy conditions, killing all its passengers, investigators revealed Friday.

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.

Hannah Ray, the fiancée of late musician Daniel Williams, paid tribute to Williams after he died in a private plane crash in San Diego on May 22, which she shared is exactly 14 years since they ‘started our story together.

Multiple people have died after a business jet slammed into homes in a San Diego military housing community just before 4 a.m. Thursday, spilling jet fuel down the street that ignited several cars, authorities said.