Each crime will be judged on its own merits, individually. Hardly ever is there a crime that doesn't involve more than one person, however, the crimes are separate. This lady's sentencing will be determined based on the severity of her own involvement and Joe Schome Booze-Wagon will hold no weight on whatever outcome becomes of her... and vice versa.
I don't know the technical statutes but:
The man's crimes: DWI/DUI, hit and run.
The lady's: Cross walk infraction, manslaughter.
The law determines the lady to be the one directly responsible for the death (and rightfully so), therefore she has a pretty hefty sentencing on her back. The man was driving on a road (speeding or not/impaired or not, pretty sure there's no proof) where no cross-walk was posted. Therefore, he is not held at fault for the fatality.