Dr. Conrad Murray

*The Associated Press is reportedly ready to seek an indictment of Michael Jackson’s doctor on a charge of involuntary manslaughter in connection with his death in June.

The coroner has ruled Jackson’s death at age 50 was a homicide caused by acute intoxication by the powerful anesthetic propofol, with other sedatives a contributing factor.

Dr. Conrad Murray, a cardiologist hired as Jackson’s personal physician for an upcoming tour, administered propofol and two other sedatives to help Jackson sleep, court documents state. Murray told police he left the room to use the bathroom, and phone records show he also made calls for 47 minutes around the time Jackson encountered problems.

When Murray realized Jackson was unresponsive, he began frantic efforts to revive him, but Jackson never regained consciousness.

A law enforcement source who spoke on condition of anonymity because the investigation remains open said Friday that Murray would be prosecuted on a theory of gross negligence alleging that his treatment of Jackson was an extreme departure from the standard of care normally followed by physicians.