Michael Jackson’s possibly crooked dermatologist, Arnold Klein received a subpoena from the L.A. County Coroner today, according to the chief investigator on the case, Craig Harvey.

The Coroner reportedly demanded that Dr. Klein turn over all of Michael’s medical records for their investigation into his death.

Sources say that Dr. Klein may be guilty of supplying Michael with prescription narcotics, including the sedative Diprivan, which could have led to his death.