Michael Jackson Michael Jackson

A witness alleges that Michael Jackson's doctor stopped performing CPR on the pop superstar and delayed calling authorities so he could dispose of drug vials, according to statements obtained by The Associated Press.

Dr. Conrad Murray pleads not guilty

Alberto Alvarez, Jackson's logistics director, described the moments before Jackson's death, painting a scene in which Dr. Conrad Murray may have tried to get rid of possible evidence, the documents show. Two other Jackson employees, who also gave statements to police, were present at the time as well.

Prince and Paris, two of Jackson's children, entered the room while Murray tried to resuscitate the singer, but were ushered away by a nanny, the statements say.

This is Alvarez's second time being interviewed by the police, which Murray's lawyer, Ed Chernoff, says he will address at the trial.

Coroner officially rules Michael Jackson's death a homicide

"He didn't say any of those things, then two months later, all of a sudden, the doc is throwing bottles into the bag," Chernoff told the AP. "Alvarez's statement is inconsistent with his previous statement."

Jackson, 50, died on June 25 from acute propofol intoxication, a drug which Murray said he had been administering to Jackson.

Murray is due back in court April 5 on charges of involuntary manslaughter.