Private Connell Williams is charged in the starvation death of a 10-year-old boy.
He's pleading not guilty to the charge of first degree murder for the May 2011 death of Marcus Holloway, the son of his girlfriend Candice Holloway.
Holloway told investigators her son Marcus was fed only rice cakes, cereal bars and water to drink on most days and was beaten severely if he stole food.
She was sentenced to 30 years in prison and is expected to testify in Williams' trial.
According to court records, federal prosecutors are seeking the death penalty.
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