Michael Jackson’s voice rang through a Los Angeles courtroom Tuesday.

Prosecutors used this recording to begin their case against Mr. Jackson’s Doctor Conrad Murray for involuntary manslaughter.

He is accused of being neglectful and inept in dealing with Mr. Jackson’s fragile condition.

Defense lawyers countered that Mr. Jackson caused his own death by taking additional drugs after Dr. Murray attempted to wean him off large doses of anesthetics.

Dr. Murray pleaded innocent and if proven guilty may lose his medical license and spend up to four years in prison.