TMZ has reported that paramedics found Jackson dead upon arrival with an IV in his arm and three oxygen tanks nearby, yet Murray insisted Jackson be transported to the hospital where he continued to try to revive him even after other doctors had given up.
Three tanks of oxygen were in the room where Jackson slept and 15 more oxygen tanks were in a security guard's shack, an official told The Associated Press.
Cherilyn Lee, a registered nurse and nutritionist who worked for Jackson, said the singer begged her to give him propofol in the days before his death. She refused to help him obtain it.
Lee told ABC News the pop star had often complained of not being able to sleep more than a few hours at a time.
"The problem with you telling me you want to be knocked out," Lee said she told him, is "you might not wake up the next morning. You don't want that."
When investigators searched Murray's Texas office earlier this month, among the items seized were a vial containing 27 tablets of the weight loss drug phentermine, a vial containing a tablet of the muscle relaxant clonazepam, a photocopy picture of Murray, Rolodex cards, public storage receipts, and a receipt for a "Cricket" phone, according to the search warrant.
Other items seized from his storage unit, according to the court records, included two computer hard drives and a "Texas Department of Public Safety controlled substance registration." Authorities also obtained a suspension notice from a Houston hospital.
The search warrants specifically directed officers to "seize and examine all items, including but not limited to, billing records, medication orders, transport receipts, billing receipts, medical records and computerized medical records, for implements and instruments used in the commission of a crime."
The warrants told police they were "commanded to search ... for property or items constituting evidence of the offense of manslaughter that tend to show that Dr. Conrad Murray committed the said criminal offense" and ship any evidence found to officials in California.
In the aftermath of his death, Jackson's addiction to a variety of drugs was revealed, including propofol (trade name Diprivan), the analgesic Demerol and the painkiller OxyContin. Track marks found on his arms support the theory that he was addicted to propofol.
Prescription medications found inside Jackson 's $100,000 per month rental home included ones in his name and ones in other names, including ones that appeared to investigators to be aliases. The medications had been prescribed by multiple doctors.
Methadone, Fentanyl, Percocet, Dilaudid and Vicodin were among the 20 drugs also found in Jackson's rental home.
Medical experts contacted by the ABC News medical unit said that the amount of medications reportedly found in Jackson's rented home was "jaw-dropping" and "amazing."
"That list is enough to put down a swarm of zombies," said Richard Bradley, chief of the Division of EMS and Disaster Medicine at the University of Texas Health Science Center at Houston.
"The list ... would be typical for an anesthesia cart in an operating room or what you might find in a recovery room, ICU, ED, etc. Definitely not what you'd expect to find in a home," said Joseph Ornato, chair of the department of medicine at Virginia Commonwealth University.