A judge has sentenced a Granite City man to 24 years in prison for abusing a 7-week-old boy so severely that he broke the child's skull and several ribs.

Madison County Circuit Judge Kyle Napp sentenced 21-year-old Kamryn Kerr on Tuesday in Edwardsville, calling the case "horrific." A jury convicted Kerr in January.

The Belleville News-Democrat reports Kerr said he was sorry about his part in a "very unfortunate and sad case involving a child."

The child's mother, 20-year-old Ashlee Wethington, also is charged. She has pleaded not guilty, and she is in custody while her case is pending.

Kerr and Wethington were arrested in September of 2014 after the injured baby was brought to a hospital.

The child now is in foster care and reportedly is doing well.

ThinkStock