Michael Jackson's doctor, Conrad Murry, gave him Diprivan, the drug that is believed to have killed him, multiple sources are reporting.

The singer died last month of cardiac arrest at his rented home in Los Angeles. Attention recently became focused on Diprivan (known generically as propofol), a powerful sedative usually used only in hospital or nursing home sedatives. Jackson had asked to have the drug administered to help him sleep, it is believed.