A search warrant affidavit unsealed in Houston and obtained by the L.A. Times today appears to confirm what we have speculated for several weeks now:

Michael Jackson died June 25 after a lethal dose of the anesthesia Propofol.

Also, The Associated Press confirms that the Los Angeles County coroner has ruled Michael Jackson's death a homicide, upping the chances of criminal charges will eventually be filed against the doctor who was with him when he died.

According to the report, Dr. Conrad Murray told police he had been treating Jackson for insomnia, giving him 50 milligrams of Propofol every night via IV. Murray feared the singer was getting addicted and reduced the dosage to 25.

The morning of June 25, Dr. Murray gave the star Valium at 1:30 a.m. Murray said that didn't work, so he gave the singer an IV injection of Lorazepam, an anti-anxiety drug. Jackson was still awake, so Murray then gave him Midazolam, a sedative.

He didn't stop there. At 10:40 a.m., Dr. Conrad Murray administered 25 milligrams of Propofol. Murray told police Jackson repeatedly demanded the drug.

Conrad Murray told police that about 10 minutes after administering the Propofol, he "left Jackson's side to go to the restroom and relieve himself."
Murray said he was away from Jackson's side for two minutes maximum, not several hours before calling 911 as some investigators have speculated.

Upon his return, Murray noticed that "Jackson was no longer breathing."

Police found eight bottles of Propofol in Jackson's house after he died, but do not know where Murray purchased it. Officials also found and seized Valium, Tamsulosin, Lorazepam, Temazepam, Clonazepam, Trazodone and Tizanidine.

According to the report, the various drugs in Michael Jackson's house had been prescribed to him by Dr. Murray, Dr. Arnold Klein and Dr. Allan Metzger.

Dr. Murray, who refused to sign the star's death certificate at UCLA Medical Center, told police he gave Propofol to Jackson but was not the only one.

He said he was at a Las Vegas cosmetologist's office where Dr. David Adams gave Jackson Propofol. It is unclear if there are other doctors implicated.

Murray is expected to be charged criminally this week or next. Manslaughter or even murder seem likely at this point. Klein may face malpractice charges.