BENTONVILLE -- A man pleaded not guilty to a charge accusing him of murdering his son.

Zachary Campbell, 32, is charged with capital murder . He entered the plea Monday at his arraignment before Benton County Circuit Judge Robin Green.

Campbell's son -- Carter – weighed 82 pounds when he died last year at the age of 14 while in hospice care in Springdale. He required constant care and was only able to be fed through a tube since being shaken by his father when he was 5 weeks old.

A medical examiner determined Carter's death was caused by the brain injury he suffered when he was shaken, according to court documents. The brain injury caused cerebral atrophy and a glial scar, which led to the boy's brain being significantly undeveloped, according to court documents.

The teen's death was r

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