The tragic life of Lawrence Phillips has come to an tragic end.

The California Department of Corrections and Rehabilitation announced Wednesday that Phillips -- a former college star at Nebraska whose NFL career was derailed by off-the-field issues -- was found unresponsive in his cell at Kern Valley State Prison early Wednesday morning. He was transported to a local hospital where he was pronounced dead.

Phillips was 40. Prison officials are investigating the death as a possible suicide.

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