After administering the powerful anesthetic Propofol, Michael Jackson’s personal physician left the performer alone to make a series of phone calls on the morning of his death, according to the Los Angeles Times. Three people "familiar with the investigation" claim that when Dr. Conrad Murray returned after the calls, Jackson had stopped breathing. Jackson came back to his rented Holmby Hills mansion in the early hours of June 25 from a concert rehearsal and was unable to sleep. Murray reportedly gave him the drug to help him rest. The doctor is currently a suspect in a police manslaughter investigation. This new allegation is unlikely to help his case.