
By Rob Alway. Editor-in-Chief. LUDINGTON — The second day of testimony in the trial of 20-year-old Eric John Knysz of Irons is underway. Knysz is charged with the murder of Michigan State Police Trooper Paul Butterfield. The first witness to testify this morning was MSP Det. Sgt. David Johnson. Johnson was one of the first Michigan State troopers to arrive…