A judge has jailed Michael Jackson's doctor Conrad Murray for the maximum four years, three weeks after he was convicted of involuntary manslaughter in the star's 2009 death.

He also said Murray should pay compensation to Jackson's family, although he made no ruling on a prosecution proposal for $100 million in restitution, putting off a decision on the amount until January.

"He has absolutely no sense of remorse,'' said judge Michael Pastor, after giving a scathing summary of the case against the 58-year-old doctor.

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