Detectives made the decision after reviewing the coroner's report.
The biggest names in entertainment swayed to gospel hymns at Whitney Houston's hometown funeral Saturday in the church where the future pop star once sang as a young girl.
To the world, Whitney Houston was the pop queen with the perfect voice, the dazzling diva with regal beauty. Those closest to her will gather Saturday at a private funeral to say goodbye.
The family said no public memorial service is planned at this time. Officials had discussed the possibility of opening up the Prudential Center, a major sports and entertainment venue, for a memorial, but the funeralhome said it had been ruled out.
Whitney Houston: Toxicology test results won't be known for weeks. L.A. officials wouldn't comment on the prescription drugs found in Whitney Houston's hotel room.
Whitney Houston, who died Saturday, wowed audiences with effortless, powerful, and peerless vocals rooted in the black church but made palatable to the masses with a pop sheen.