Rock Rapids, IA (Northwestiowanow.com) — The Lyon County woman charged with the first-degree murder of her six-week child has entered a not guilty plea.

As we previously reported, 25-year-old Sydney Schneidermann was charged August 31st for the death of her infant son one year ago. He was taken to the emergency room on September 10th and released but was brought back the next day in critical condition and airlifted to Sioux Falls where he died two weeks later. Doctors says the infant had fractured ribs, brain trauma, and bruising on his neck consistent with child abuse.

The baby’s father – 27-year-old Brenan Schneidermann has been charged with child endangerment.