Sarah Knysz will face a judge in Mason County, this afternoon, in the Trooper Butterfield murder case.
The 20-year-old, expectant mother, pled guilty last month to accessory to murder of a police officer after the fact and to unlawfully driving away a motor vehicle. She is facing up to five years in prison. Her one charge in Manistee County is expected to be dropped. Knysz is also expected to testify against her husband, Eric, when his trial begins in February.