RadarOnline.com has learned that hospital staff at Cedars Sinai tried to revive Brittany Murphy three times before pronouncing her dead at 10:04am Sunday.
Paramedics arrived at Murphy's Beverly Hills house at 8.30am.
Murphy's neighbor, Clare Staples, told RadarOnline.com: “I saw five firemen bringing down the gurney and take her down to the firetruck, trying to resuscitate her by the fire truck. She had tubes down her throat…I think she was dead already.”
Murphy's cause of death has been listed as cardiac arrest but there is an investigation being conducted and as RadarOnline.com exclusively reported there will be an autopsy.
An investigator from the Los Angeles County Coroner’s office was scheduled to arrive at Cedars on Sunday afternoon to interview attending physicians. Brittany’s mother and husband, screenwriter Simon Monjack will also be interviewed, a coroner’s spokesperson tells RadarOnline.com.