The story of Anna Nicole's tragic death at the age of 39. Plus, our exclusive video of Anna Nicole's last moments alive.

ET confirms that ANNA NICOLE SMITH died Thursday afternoon at a Florida hospital after she was found unresponsive in her hotel room. She was 39.

In a new development, Anna's daughter, DANNIELYNN, has been reunited with her partner, HOWARD K. STERN. For more on their touching reunion, click here.

On Friday, officials announced that no illegal drugs were found in Anna Nicole's room, and Police Chief CHARLIE TIGER told reporters that no evidence has been found to suggest foul play.

An autopsy took place Friday to determine the cause of death. Although it may take three to five weeks to complete the investigation, the chief medical examiner said that no pills or tablets were found in Anna Nicole's stomach.

In other new developments, on Friday morning a judge denied a request by LARRY BIRKHEAD's attorney for an emergency DNA test of Anna Nicole's body. Birkhead is seeking a paternity test to determine whether or not he is Dannielynn's biological father (although Anna Nicole insisted that Howard K. Stern was her daughter's father) and his lawyer had asked for an immediate DNA test of Anna's body. Both sides are due back in court in 10 days to continue the paternity hearing.

Those close to Anna -- including her good friend and confidante KHRISTINE EROSHEVICH -- tell ET she had been running a fever in the days before her death, which reached as high as 105°. She was given anti-viral medication and her temperature dropped below 100° -- allowing her to fly to Hollywood, Florida. Her fever had broken by Wednesday. That afternoon, she fell in the bathroom and hit her head. She said she was feeling fine, had a meal and went back to bed.

On Thursday, Eroshevich says she received the call from Howard. "I kept thinking maybe she isn't dead, maybe they saved her," she says. "And then I talked to a person at the Hard Rock and they said it didn't look good."

Sources tell ET that back in December Anna was actually found unconscious and face-down in the pool at her Bahamian home. Discovered by Howard, her bodyguard was able to revive her. "I don't know if it was an accident," Eroshevich says of the incident. "Anna never talked about her actions or her feelings. In retrospect I wonder if that was a suicide attempt or if she was confused."

She also reportedly often talked about suicide, asking, "Is there any way for me to join DANIEL [her deceased son]?" According to Eroshevich, it was a constant battle for Anna between those urges and her love for her newborn child.

LINDA BELL BLUE, executive producer of "Entertainment Tonight" and "The Insider," visited Howard at his hotel in Miami Friday morning. Bell Blue says, "Howard is devastated, inconsolable and distraught after the death of Anna Nicole." She adds that he was "hysterical and could barely speak."

Anna and Howard planned to wed in the Bahamas on February 23rd, 2007. Our own MARK STEINES had been invited to the ceremony.

Florida authorities held a press conference Thursday afternoon to confirm the details of her death:

At 1:38 p.m. Eastern time Thursday, Anna Nicole was found her unresponsive in her sixth-floor hotel room at the Seminole Hard Rock Hotel. Her eyes were dilated and a call was placed to the hotel front desk operator for help. Only the nurse was in the room with Anna Nicole at this time.

At 1:45 p.m., a bodyguard arrived in the room and administered CPR.

When the emergency response team arrived, they found Anna Nicole unconscious and unresponsive. She was then rushed to Memorial Regional Hospital, about three blocks away from the hotel.

At 2:49 p.m., Anna Nicole was pronounced dead.

Stay tuned to ET for the latest details on this developing story.

More Anna Nicole: Take a look back at her life and watch video clips from her final interview.

Exclusive video provided by Splash News Agency.