She's due back in court Jan. 14 and is being held in lieu of $500,000 bail -- a sum her attorney unsuccessfully opposed.
"This is one event, and it seems like bail is being stacked," said Jeffrey Gray, Bronstein's attorney.
"My concern is that there seems to be almost a mob mentality with this case," he said. "We should not engage in speculation -- it's not fair to any of the parties involved."
"Obviously she feels terrible," he said. "This is an accident."
If convicted of the charges, she could face 40 years in prison.
Torrance residents Mary Ann Wilson, 81, and Saeko Matsumura, 87, also died in the crash. Eight others, including the three surviving members of the Gaza family, were hurt.
The deputy district attorney who filed the complaint against Bronstein, meanwhile, has herself admitted injuring two people in a drunk driving accident.
District attorney's spokeswoman Jane Robison said her office did not see any problems with having Seymour file the case against Bronstein. She noted that Seymour will not be the attorney handling the case in court.