The woman whose body was found in a van her son was driving and then wrecked near Willits in October has been found to have died of an accidental drug overdose. Christine Ann Randolph of Eureka was found to have had several narcotics in her system. Randolph’s son, Root Harvest Birimisa, was arrested after fleeing the scene of an accident involving the van. Birimisa was charged with DUI and hit and run.