Remembering Bobbi Kristina Brown According to the autopsy report, Bobbi Kristina Brown died from pneumonia. FULTON COUNTY, Ga. - We now know Bobbi Kristina Brown"s face being immersed in water, along with drug intoxication, led to her death last year.Friday morning, the Fulton County Medical Examiner"s Office released a statement about the findings of the autopsy on Bobbi Kristina following a court order on Thursday. The...