(FOX NEWS) -- Phil Spector, the revolutionary music producer behind some of music's biggest hits, died while serving time in prison at age 81.
Spector was serving a sentence for the murder of actress Lana Clarkson in 2003 at his castle-like mansion on the edge of Los Angeles. After a trial in 2009, he was given a 19 years-to-life sentence.
California state prison officials said he died Saturday of natural causes at a hospital.
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