Search warrants unsealed Thursday say family members found tar heroin in Michael Jackson's bedroom. Various media outlets are reporting that the substance was not heroin.
"During the course of the investigation, family members of the decedent notified Los Angeles County Coroner's Assistance Chief Winter, that they had located a quantity of tar heroin in a bag in the decedent's bedroom located on the 2nd floor of the residence," according to the warrant.
Download: Unsealed Search Warrants, Affidavits (PDF)
Also on the warrant, Detective Orlando Martinez wrote, "Conversations with family members lead me to believe that there may be additional medications and/or narcotics at the location as well as the necessity to confiscate these items for the safety of the minor children."
However, TMZ reported Thursday that "a source connected with the case tells TMZ the 'tar heroin' was tested -- and the results showed it was not heroin of any kind."
The Los Angeles Times and The Associated Press also had sources confirming that the substance was not heroin:
But two sources familiar with the investigation told The Times that authorities tested the substance believed to be heroin and the tests came back negative.
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The sources -- who spoke on the condition that they not be named because it was an ongoing investigation -- also said that heroin was not present in Jackson’s system.
The warrant does not mention any testing. Also, according to the warrant, marijuana was found in an unspecified area of the house.
At the center of Jackson's death has been Dr. Conrad Murray, Jackson's personal physician who gave the King of Pop anesthetic propofol.
In the documents unsealed Thursday, police say while at UCLA Medical Center, Murray admitted that he was with Jackson at the time of the singer's death.
Also, according to the warrant, Murray left against the wishes of police.
"Detectives obtained a short summary of the events and Dr. Murray left the hospital against the objections of the investigating officers," according to the warrant.
Murray is charged with administering a continuous cocktail of sedatives to Jackson on the morning of his death -- most notably a lethal dose of the powerful anesthetic propofol -- allegedly in response to Jackson complaining of insomnia.
During a recent search of Murray's office, Valium, Lorazepam, Clonazepam, Tamsulosin and other drugs were confiscated. Dipravan (propofol) was also found in his medical bag. Though records suggest that Murray was not the first doctor to administer Diprivan to the singer, evidence suggests that he did administer Jackson's final dose, leading to Jackson's respiratory arrest.
Two warrants were unsealed Thursday. Two more remained sealed.
Also Thursday, there were media reports that the autopsy would be released on Friday. Craig R. Harvey of the coroner's office said those reports are incorrect.
