All four died in the crash.
Prosecutors have now filed a single charge of misdemeanor vehicular manslaughter, which carries up to a year in prison.
The district attorney's office said there was no evidence of gross negligence in the crash.
All four died in the crash.
Prosecutors have now filed a single charge of misdemeanor vehicular manslaughter, which carries up to a year in prison.
The district attorney's office said there was no evidence of gross negligence in the crash.