Preliminary blood test results revealed the presence of benzodiazepines in singer Whitney Houston’s system after she died, according to Radar Online. The benzodiazepines found in Whitney’s system — Xanax, Ativan, and Valium — are sedatives prescribed for high anxiety and stress disorders associated with depression. Some benzodiazepines are highly addictive.

Houston, 48, was found unresponsive in the bathtub of her luxury suite at the Beverly Hilton on Saturday. She was pronounced dead at the scene by paramedics at 6:55 p.m. EST.

A law enforcement insider told RadarOnline.com: “The final toxicology results will reveal the specific sedative(s) that she ingested, and the level. Those final toxicology results should be in later this week.”

The law enforcement source also corrected a fallacy that is commonly quoted to the media by coroners — that toxicology test results take 4-6 weeks to come back.

“Toxicology testing and results don’t take 4-6 weeks to come back. Look at how quickly toxicology screening tests are done in hospital emergency rooms when someone comes in with an overdose. The Coroner and the Beverly Hills Police Department have placed a security hold on the case, so it will be a few weeks before the results are revealed publicly.”

Ms. Houston’s body was flown to New Jersey, where she will be eulogized on Thursday. Whigham Funeral Home owner Carolyn Whigham confirmed Whitney Houston’s Funeral for Saturday, Feb. 18th, at The New Hope Baptist Church in Newark, NJ.

We now know that Houston’s body was flown to NJ on Tyler Perry’s private jet. We know that because some celebrities can’t perform a good deed without tacking on the price of free publicity.

Another narcissist who attached her name to this tragedy is Oprah Winfrey, who plans to air the full 2009 interview she did with Whitney on her struggling OWN Network on Feb. 16, at 9 p.m.

Oprah will also “reflect on her personal memories of the iconic superstar and shares with fans the magic of a musical icon gone too soon,” a press release from the network said.

Oprah also released a statement yesterday apologizing for tweeting a request asking Neilsen box owners to tune into her struggling OWN Network to artificially boost her ratings. It was a moment of desperation for Oprah whose multimillion media empire is rapidly unraveling.