Associated Press: LOS ANGELES -- The Associated Press has learned that prosecutors will seek an involuntary manslaughter indictment against Michael Jackson's doctor for the pop star's death.

A law enforcement source says Dr. Conrad Murray will be prosecuted on a theory of gross negligence. The person spoke on condition of anonymity because the investigation remains open.

Before an indictment can be sought, the person says the Los Angeles Police Department will follow the formality of presenting the case to the district attorney.

Both agencies have been working on the case along with the U.S. Drug Enforcement Agency and the California Bureau of Narcotics Enforcement since Jackson died in June.

© 2010 The Associated Press.

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