Cissy Houston arrives to see granddaughter Bobbi Kristina Brown , source says . A coroner ruled her death an accidental drowning , with heart disease and cocaine use listed as contributing factors . The singer and her husband Bobby Brown, who was found dead in a bathtub at their home on June 25, died from an apparent drug overdose, police said.
Cissy Houston arrives to see granddaughter Bobbi Kristina Brown , source says . The singer and her husband Bobby Brown, who was found dead in a bathtub at their home on June 25, died from an apparent drug overdose, police said.