Michael Jackson's doctor will be sentenced Tuesday for the death of the pop superstar.

Doctor Conrad Murray faces up to four years in prison for giving Jackson a fatal dose of an anesthetic to help the entertainer sleep, and then failing to properly monitor him.

A Los Angeles jury found Murray guilty of involuntary manslaughter following a six-week trial that ended in early November.

Prosecutors said Murray gave Jackson the powerful drug propofol that is not approved as a sleep aid, and then abandoned the entertainer while he attended to personal matters. They also said the doctor put off calling for emergency help after finding Jackson unresponsive. They said Jackson put his trust in Murray and paid for it with his life.

Jackson died in his Los Angeles bedroom in June 2009. He was in rehearsal for a planned series of European concerts at the time.

Murray's lawyers argued that Jackson gave himself the fatal dosage without the doctor's knowledge. They said there is no proof the doctor did anything wrong. Murray did not take the stand in his own defense.

Apart from the criminal trial, Jackson's father has filed a wrongful death suit, accusing Murray of lying to the doctors and paramedics who tried to save the singer's life.