PARKER - A jury has convicted a South Dakota man of killing his son.

Thirty-nine-year-old Chris Miller was convicted late Wednesday of second-degree murder and aggravated assault. The murder charge carries a mandatory sentence of life in prison.

Miller, of the southeastern town of Scotland, was accused of shaking and beating 4-month-old Jacob Miller in March 2011. Attorney General Marty Jackley says the boy was diagnosed with a skull fracture and bleeding on the brain when he was brought to a hospital.

Defense attorneys argued during Miller's trial that his wife was responsible for the death because she rolled over on the child while in a drunken stupor.

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