A 19-year-old man whom prosecutors say drove the alleged killer of a homeless woman to the Serra Mesa location where she was fatally shot with a pellet gun pleaded guilty Thursday to assault with a deadly weapon. Ryan Hopkins faces up to three years in state prison for his role in the shooting of 68-year-old Annette Pershal, whom police found unconscious on the morning of May 8 on Sandrock Road. Pershal was shot in her head, leg and torso, with one pellet rupturing her aorta, according to Deputy District Attorney Roza Egiazarian. She died in a hospital three days later. Prosecutors say Hopkins drove 18-year-old co-defendant William Innes to the scene after Innes allegedly announced over a group chat "I'm going hobo hunting with a pellet gun." Innes is charged with murder and various firearm-related counts and remains in custody without bail. Hopkins is out of custody on $75,000 bail and is slated to return to court for an Oct. 27 sentencing hearing. MORE: https://www.cbs8.com/article/news/local/driver-pleads-guilty-in-pellet-gun-death/509-fb696fed-674b-4fa1-bb5b-842a381bc680