By Kate Ward
Updated October 18, 2011 at 08:14 PM EDT

Though the involuntary manslaughter trial against Michael Jackson’s doctor Conrad Murray was expected to resume today, the proceedings have been delayed at least one more day, CNN reports. The trial was initially held up due to a death in one of the witness’s families; now, new lab tests are pushing back Murray’s court appearance. According to CNN, the defense is hoping for extra time to study evidence that supposedly proves that Jackson had not ingested a fatal dose of the sedative lorazepam.

Jury deliberations are still scheduled for next week.

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