Murray told investigators two days after Jackson's death that he used the surgical anesthetic propofol every night for two months to help him rest for rehearsals.

CNN: March 4, 2013 -- Updated 1554 GMT (2354 HKT)

Applied Pharmacy on Flamingo Road in Las Vegas sold the anesthetic propofol to Dr. Conrad Murray, Jackson's doctor, a source familiar with the investigation said.

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"Ms. Rowe knew this was incredibly dangerous, " Putnam said, and she insisted on staying by Jackson's side while he was under the effects of the anesthetic.

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The coroner ruled that Jackson died from an overdose of the surgical anesthetic propofol, which Murray told police he was using to treat the singer's insomnia.

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AEG's attorney says the case is about personal choice, namely Jackson's decision to have Murray serve as his doctor and give him doses of a powerful anesthetic as a sleep aid.

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You do not go under a general anesthetic and, at the same time, if you then decide to proceed here, it's just really an incision in the skin under the shoulder here and the implantation of this device.

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Still, the negligence case filed by his mother against AEG promises to deliver the most detailed account of the singer's addiction struggles, including testimony from his ex-wife Debbie Rowe about treatments involving the anesthetic propofol dating back to the 1990s.

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The lawsuit contends that AEG Live is responsible for Jackson's death because it hired and supervised Dr. Conrad Murray, who was administering the surgical anesthetic propofol to Jackson each night for a month to induce sleep as he prepared for a series of concerts organized by AEG Live.

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