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Whitney Houston's body arrives home in New Jersey

February 13, 2012 12:00:00 AM PST
Whitney Houston's body was flown from Los Angeles to New Jersey late Monday night for a funeral to be held at week's end.

The pop star's body was expected to be taken to Newark, where the late singer was born.

On Monday, Beverly Hills police held a news conference revealing more details surrounding the 48 year old's untimely death.

Lt. Mark Rosen said that Houston was discovered underwater in a bathtub at the Beverly Hilton hotel by a member of her staff at about 3:30 p.m. Saturday. First responders found her unconscious and unresponsive. She was declared dead at 3:55 p.m.

Police are still investigating the cause of death.

The Los Angeles County coroner's office confirmed prescription pills were found in Houston's hotel room.

Coroner's Assistant Chief Ed Winter said that there weren't an abnormal amount of bottles, and that the prescriptions themselves were "pretty normal."

Sources said that amoxicillin was one of the prescription bottles found in the room. A beer and an empty glass of champagne was also found.

Toxicology tests looking for illegal and prescription drugs in her system will be conducted, but they could take weeks to complete, Winter said.

Houston's autopsy has been completed, but not released. The coroner's office is also looking into the singer's medical history.

On Monday, fans paid their respects to Houston at a makeshift memorial outside the Beverly Hilton. The memorial began to take shape Saturday night after news broke of her death.

"I have never felt pain for a celebrity, never shed a tear for a celebrity, until I heard about Whitney Houston's death the other night," said fan Marcus Jordan. "I had to come here and see this for myself."

Houston was pronounced dead just hours before scheduling to appear at longtime mentor Clive Davis' pre-Grammy Awards gala at the Beverly Hilton.

The pop icon had a public battle with drugs. In 2009, Houston admitted to abusing cocaine, marijuana and pills.

Read celebrity reactions of Whitney Houston's death.

On Sunday, the Grammys was transformed into a Houston memorial, where attendees celebrated the pop star and the show hurriedly assembled a last-minute tribute.

"We've had a death in our family," said host LL Cool J, who then led the crowd in a prayer.

Actress and singer Jennifer Hudson performed a tribute, singing Houston's signature ballad, "I Will Always Love You."

Houston had presented Hudson with her first Grammy. Houston was a six-time Grammy winner herself.

Houston leaves behind daughter Bobbi Kristina Brown. The 18 year old was taken from the Beverly Hilton and admitted and released from Cedars-Sinai Medical Center on Sunday for anxiety and stress.

Bobby Brown arrived at Los Angeles International Airport on Sunday night to be with his daughter. The couple married in 1992 and divorced in 2007.

There was tight security Monday night at the Whigham Funeral home in Newark, where Houston's body arrived later in the night.

Whigham is the same funeral home that took care of arrangements for Houston's father, John Houston, Jr., when he died in 2003.

As for the late singer, funeral plans have not yet been finalized. The family is reportedly considering a private wake at a church on Thursday.

Plans are also reportedly in the works to hold a public funeral Friday at the Prudential Center, which can seat 18,000 people.

Houston's music skyrocketed to the top of the charts in the wake of her death. On iTunes, "I Will Always Love You," "I Wanna Dance with Somebody" and "Greatest Love of All," clocked in first, second and third place.

Dozens of people were rehearsing at a church in South Los Angeles on Monday night for a benefit concert this weekend.

Among the performers is someone who worked with Houston, singer Sabrina Johnson. She's singing "I Love the Lord," which Houston sang in "The Preacher's Wife."

"I feel like I lost a friend, a big sister," Johnson said. "We have always prayed for her and we always just held the belief that she would recover and come back to herself and remember who she really is and that's the angel that God let us have for a very little while."

Johnson will be performing in "The Gospel According to Tim McAfee-Lewis" at Agape International Spiritual Center at 6:30 p.m. on Feb. 19. Part of the event will be a tribute to Houston.

See photos of Whitney Houston throughout the years.

ABC News and the Associated Press contributed to this story.