Prosecutors contend Murray is responsible for his death even if he did not give him the final and fatal dose because he was criminally reckless in using the surgical anesthetic to help Jackson sleep without proper precautions.
The defense contends Jackson became addicted to the painkiller Demerol through frequent visits to the Beverly Hills dermatology clinic of Dr. Arnold Klein in the months before his death. Murray was unaware of the addiction, and therefore unable to understand why he could not help Jackson sleep, the defense contends.
Jackson received 900 milligrams of Demerol at Klein's clinic over three days in early May, the records showed.
Dr. Waldmon called the shots "stiff doses."
Waldmon testified that from his review of those medical records and "based on what is known of his public behavior that he was probably addicted" to Demerol.
"Six weeks of very frequent high-dose use would develop opioid dependence in any of us," Waldmon said.
The defense also sought to connect the Demerol shots to Jackson's poor health at some rehearsals for his comeback concerts and at other times when he complained of being being hot and cold at the same time.
Patients describe opioid withdrawal as like "the worst case of influenza they ever had," Waldmon said.
While Demerol was not found in Jackson's blood or body during his autopsy, the defense contends it played a major role in his death. His inability to sleep, which Murray was trying to resolve the day he died, could have been a direct symptom of his withdrawal from the drug.
"Anxiety, restlessness and insomnia" are "very common" symptoms of Demerol withdrawal, Waldmon said.
Jackson's personal assistant, Michael Emir WIlliams, testified earlier that Jackson's visits to Dr. Klein were "very regular" in his last months of life.
"There were times he would go almost every day" to Klein's office, and Jackson often appear intoxicated when he left, Jackson's security chief Faheem Muhammad testified.
Los Angeles County Superior Court Judge Michael Pastor ruled earlier that while the defense could use Klein's medical records, they could not call the doctor or his staff to testify in the trial.
Murray, who has pleaded not guilty, faces a maximum of four years in prison if convicted.
Last Defense Witness Called in Trial of Michael Jackson's Doctor
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