New Details: Dr. Conrad Murray Search Warrant Unsealed

ET has obtained a warrant unsealed by a Nevada judge on Friday against the Las Vegas pharmacy that was searched last July as part of the investigation into Michael Jackson's death and where officials believe Dr. Conrad Murray may have obtained the drug Propofol.

According to the papers, investigators who searched Murray's home and office found a receipt from Applied Pharmacy Services for a transaction that took place on May 12, 2009, during which Dr. Murray apparently obtained four vials of Propofol, among other drugs. Propofol is one of the drugs that ultimately killed Jackson on June 25. Propofol was also found in Murray's doctor's bag and "on the bedside table," according to the warrant.

In other documents, police claim Murray told them that Jackson referred to Propofol as his "milk" and that he was giving the late King of Pop 50 mg of the drug "every night via intravenous drip (IV) to assist Jackson in sleeping." He also claimed, according to the documents, that he suspected Jackson had formed an addiction and tried to "wean Jackson off the drug."