LOS ANGELES (CBS) — The defense and prosecution have both rested without Dr. Conrad Murray taking the stand in his involuntary manslaughter trial.

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Forty-nine witnesses testified in the trial over a 22 day period.

Murray is accused of administering a deadly dose of the anesthetic propofol to pop star Michael Jackson on June 25, 2009.

Superior Court Judge Michael Pastor gave Murray until 9:30 a.m. Tuesday morning to decide if he would take the stand.

“My decision is that I will not testify in this manner,” Murray announced in court.

Monday, lead prosecutor David Walgren attacked key defense witness and propofol expert Dr. Paul White.

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White testified that Jackson somehow got his hands on a syringe and quickly pushed the remaining dose of the drug into his IV.

White also outraged Pastor when he testified about conversations he had with Murray. He now faces a $1,000 fine for testifying about hearsay.

White did, however, admit that Murray made mistakes on the day Jackson died.

He criticized Murray’s decision to leave Jackson alone with access to propofol and failure to immediately call for help, as well as his decision to take the job in the first place.

Testimony was extremely technical when White returned to the stand Tuesday morning. The prosecution rested after White finished his testimony.

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Closing arguments are scheduled to begin Thursday at 9 a.m.