(Vancouver, WA)  --  A woman who's accused of killing a pedestrian in a hit-and-run in Vancouver is now in custody.  Sheriff's deputies say 35-year-old Jessica Bankhead turned herself in yesterday morning, in connection with the Saturday night crash that killed 44-year-old Richard Waller, also of Vancouver.  Authorities say Waller was hit in the 23-hundred block of Northeast Minnehaha Street.  Investigators say alcohol is believed to have been a factor.