A Blue Springs man pleaded not guilty this week to murdering and abusing a 12-month-old boy.

A Blue Springs man pleaded not guilty this week to murdering and abusing a 12-month-old boy.

Kyle W. Cooper, 25, pleaded not guilty to one count each of second degree murder, abuse of a child, and endangering the welfare of a child.

Jackson County prosecutors say the boy suffered from malnutrition, a broken arm, fractured skull and ribs, and a severed tongue that Cooper and the mother, Kimberly Helmes, 21, tried to sew up with a thread and a needle. Cooper was Helmes’ boyfriend at the time of the boy’s death in September.

Helmes has also been charged with second-degree murder and endangering the welfare of a child. She has also pleaded not guilty and has a pre-trial conference set for Nov. 12 in division 5 of the Jackson County Circuit Court.

A pretrial conference has been scheduled for Cooper on Nov. 14 in Division 16.

Both are being held at the Jackson County Jail on $500,000 bond.