KABC said four people were killed, citing Santa Ana police.
Bommarito explained the plane was on its way to nearby John Wayne Airport, and it is possible the pilot intentionally avoided people on the ground during the plane's collision to limit the number of casualties.
The Cessna 414 aircraft went down at the parking lot of a Staples store in the 3900 block of Bristol Street at 12:28 p.m. on Sunday, authorities said.
Others included developer and pilot Scott Shepherd, 53, of Diablo, Lara Shepherd, 42, Floria Hakimi, 62, of Danville and Nasim Ghandan, 30, of Alamo.
The plane is registered to the San Francisco-based real estate company Category III, according to an FAA database.
Lynchburg flood: College Lake Dam failure - emergency evacuations
Because the sediment from the city's runoff is trapped above the dam, the lake has dramatically reduced in size. The dam was built in the early '30s and, like many dams in the usa , doesn't meet current safety standards.
Footage from the scene shows the wreckage of a twin-engine Cessna. The doomed flight's horrifying nose-dive was captured by at least two vehicle's dashboard cameras.
"Bodies were hanging from out the side of the plane", said Perez, adding that emergency workers were there within minutes.
The Orange County Fire Department said the plane's engine cut out before it could make it to the airport. The agency will investigate and the National Transportation Safety Board will determine the cause of the accident, the FAA said in a tweet.