Los Angeles (CNN) -- A judge has ordered Dr. Conrad Murray to meet with Katherine Jackson's lawyers next month for a deposition in her wrongful death lawsuit against concert promoter AEG Live.
The lawsuit, which is set for trial in April, accuses AEG Live of causing the death of Katherine Jackson's son, Michael Jackson, by pressuring him to prepare for his 2009 comeback concerts while he was in fragile health.
The suit, filed on behalf of Michael Jackson's mother and three children, says that AEG Live executives hired and supervised Murray, who was convicted of involuntary manslaughter in Jackson's death.
Murray lawyer Valerie Wass, who unsuccessfully objected to the deposition, said the decision disappointed her. Wass said she would advise Murray to invoke his Fifth Amendment right to not answer questions.
"But Dr. Murray has a mind of his own," Wass said. "If he decided to answer a question, those parties don't know what he's going to say."
The videotaped deposition is set to take place on March 18 in the Los Angeles County jail where Murray has been serving his sentence since November 2011.
Murray, who was the pop superstar's personal physician, has never been questioned under oath about Jackson's death. He did not testify at his trial.