ORANGE CITY—A Spirit Lake man has been found guilty of second-degree murder in a case in which he was accused of killing his friend after a night of drinking at an Ireton farmhouse on May 9 of last year.

Seventy-one-year-old Gregg Eugene Winterfeld faced a charge of first-degree murder in a trial held Tuesday, March 30-Wednesday, April 7, in Sioux County District Court in Orange City.

The jury returned a verdict the same day it began deliberations.

The second-degree murder verdict indicates the jury did not think Winterfeld’s action was premeditated, although the jury did affirm he used a dangerous weapon.

Sentencing has been scheduled for 10 a.m. Friday, May 28.

Winterfeld’s bond was revoked and he was transported to the Sioux County Jail.

The case arose after Grant “Willy” Wayne Wilson of Cleghorn spent the afternoon and evening visiting Winterfeld at his mother’s rural Ireton farm home.

Wilson and Winterfeld spent the day drinking alcohol, according Sioux County attorney Thomas Kunstle, who prosecuted the case on behalf of the state of Iowa in cooperation with the Sioux County Sheriff’s Office, which conducted the investigation.

An argument developed and Wilson decided to sleep in a car parked in the driveway.

Winterfeld locked the home’s doors, put on a holster with a loaded .22-caliber revolver, exited the home and convinced Wilson to come back inside.

Upon reentry, the argument continued and Wilson attempted to leave.

Winterfeld pursued and unholstered his gun.

Wilson turned around, and according to Winterfeld, Wilson gave Winterfeld a look, so Winterfeld raised his gun, aiming as close as he could get between Wilson’s eyes and fired, according to an announcement of the verdict provided by Kunstle.

Editor's note: This article has been updated.