An autopsy was conducted, which included toxicology, and we're told the family has now been informed the official cause of death is listed as an accidental overdose.
We spoke with Josie's attorney, Dan Friedlander, who issued a statement on behalf of the family.
"The family is aware the medical examiner has released the report and they are thankful for the closure. Josie will be remembered as a truly kind and giving person and loving mother. She was loved and will be missed."
Floyd dated Harris in a famously up-and-down relationship from 1995 until 2010 ... and after her death, he called her "a great woman" and "a great person."