Dr. Conrad Murray was convicted of involuntary manslaughter in Michael Jackson's death, but the late singer's former dermatologist, Dr. Arnold Klein is under investigation by the Medical Board of California for his past treatment of his famous patient.
Klein has been accused - by Murray and others - of fueling MJ's addiction to prescription painkillers, and has been subpoenaed by the Board for questioning.
He just posted a letter on Facebook, apparently sent from his ex-lawyer, showing that officials are probing allegations that Klein over-prescribed Demerol.
The Board reportedly wants to grill Klein about the possibility that he self-prescribed narcotics, used false names on narcotics prescriptions, illegally handed out samples of dangerous drugs to his famous patients such as Michael Jackson.
By doing so, Klein, who has multiple sclerosis, may have committed gross negligence.
Also rumored to be the biological father of Prince and Paris Jackson, Klein has always strongly denied any wrongdoing and is not accused of any criminal conduct.
Time will tell if that changes and/or if the board takes any disciplinary action.