Dr. Conrad Murray Pleads Not Guilty To Involuntary Manslaughter In Michael Jackson's Death

Jan. 25 2011, Published 3:35 p.m. ET

Dr. Conrad Murray pleaded not guilty to a charge of involuntary manslaughter in the death of pop icon Michael Jackson, during his arraignment in Los Angeles Tuesday, RadarOnline.com has learned.

The 57-year-old doctor was the King of Pop's live-in doctor when he unexpectedly died at 50 on June 25, 2009 with his official cause of death deemed acute intoxication of a powerful anesthetic complicated by other sedatives.

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On January 11, Los Angeles County Superior Court judge Michael Pastor said there was enough evidence for the Houston-based cardiologist to stand trial on the aforementioned charges. Judge Pastor has forbid Murray from practicing medicine in California until the end of the trial.

Prosecutors said Jackson died from a lethal dose of Propofol, a strong anesthetic which Murray's admitted to administering to the Man In The Mirror singer to help him sleep.

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"Michael is not with us today because of an utterly inept, incompetent, reckless doctor -- the defendant Conrad Murray," Los Angeles County deputy district attorney David Walgren said at the conclusion of the six-day preliminary hearings.

Murray's attorneys claim that the late Thriller singer might have drank or injected himself with the deadly dose while the doctor -- who'd just given him a dose -- was out of the room.