Authorities have scheduled the jury trial for a western South Dakota man accused of killing his ex-girlfriend and her unborn child. The trial of 32-year-old Michael Young is expected to begin Aug. 12. He has pleaded not guilty to first-degree murder and fetal homicide charges. His attorney did not immediately return a call seeking comment Monday. Authorities allege that Young stabbed 30-year-old Morgan Myers to death in a Wal-Mart parking lot on April 2012. Myers was pregnant with his child. He is being held without bond at the Pennington County Jail.