Dr. Conrad Murray, the doctor accused of giving Michael Jackson a lethal dose of the sedative Propofol, attended court in Los Angeles Tuesday for his trial’s preliminary hearing. Prosecutors claim that Murray, who is facing involuntary manslaughter charges, waited to call 911 after Jackson had stopped breathing and hid evidence that he had given the pop sensation a dose of Propofol that led to his death on June 25, 2009. Said Deputy District Attorney David Walgren during the hearing, “In the opinion of medical experts, there were a number of actions by Dr. Murray that showed an extreme deviation from the standard of care.”

Also giving testimony during the hearing: This Is It director Kenny Ortega, who insisted that Jackson was “involved, active, participating” during his final rehearsal just hours before his death. The defense will likely argue that Jackson’s grueling rehearsal schedule and pressure attached to his upcoming concert tour was in part responsible for his passing. Two weeks of testimony is scheduled before the case will be considered for a jury trial. If convicted, Murray could lose his license to practice medicine and face four years in prison.

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