Michael Jackson's personal doctor was found guilty on Monday of involuntary manslaughter in the pop star's death.

Dr. Conrad Murray had pleaded not guilty to giving the "Thriller" singer a fatal dose of the powerful anesthetic propofol, which was ruled as the main cause of his death on June 25, 2009.

Prosecutors argued during the six-week trial that Murray was grossly negligent in administering the propofol to help Jackson sleep as he prepared for a series of comeback concerts.

Defense attorneys said Jackson gave himself the fatal dose of propofol.

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