Jackson's doctor said what drug he'd administered to King of Pop before death

A law enforcement official with knowledge of the investigation into Michael Jackson's death says the singer's doctor told investigators he administered the powerful anesthetic that authorities believe killed the pop star.

The official, who requested anonymity because the probe is ongoing, told The Associated Press on Tuesday that Dr. Conrad Murray said he gave Jackson propofol (PROH'-puh-fahl) the day he died. Murray said he had administered the drug several times previously to help Jackson sleep.

The official said police found propofol and various sedatives in a walk-in closet in Jackson's room. Propofol is only supposed to be administered in medical settings.

Murray's lawyer has said the doctor didn't prescribe or administer anything that should have killed Jackson.