By Rob Alway. Editor-in-Chief. LUDINGTON — Sarah Knysz pleaded guilty today in 51st Circuit Court. The 20-year-old Irons resident, who is 8-months-pregnant, appeared in court for a final conference. At that time Mason County Prosecutor Paul Spaniola offered her a chance to plea guilty, unconditionally, to the two charges against her: accessory to murder of a police officer after the fact…