A jury has convicted a man in the September 2013 shooting death of a Michigan State Police trooper.

According to WNEM, 20-year-old Eric Knysz was found guilty of first-degree murder in just two hours by a Ludington jury. Knysz had been on trial for the shooting death of 43-year-old Trooper Paul Butterfield. He had been pulled over in his pickup truck by Butterfield and authorities argued he had stolen guns with him. Knysz's wife Sarah was with him and testified against him at trial.

Butterfield had been with the Michigan State Police for 14 years. He was a veteran of the U.S. Army and had recently become engaged to be married before his death.