Sioux County Sheriff

Shooting death leads to arrest – May 9 *UPDATED*


The Sioux County Sheriff’s Office investigation into the murder of Grant Wilson, has led to a change in the original charge of 2nd degree murder that was filed against Gregg Winterfeld.

After discussion with the Sioux County Attorney, on Friday, May 22, the attorney’s office amended the charge against Winterfeld to 1st degree murder.

The case remains under investigation.


The Sioux County Sheriff’s Office is releasing the name of the victim killed during a disturbance that occurred on Saturday, May 9.

The name of the victim that was shot was Grant Wayne Wilson, age 58, of Cleghorn, IA.

The case remains under investigation by the Sioux County Sheriff’s Office.



On Saturday, May 9, at 10:03 p.m., the Sioux County Sheriff’s Office received a report of a disturbance, which involved a shooting inside a residence on Dove Avenue, three miles northwest of Ireton, IA. When deputies arrived they discovered a 58 year old male inside the residence dead of an apparent gunshot wound.

As a result of the investigation, the sheriff’s office arrested Gregg Winterfeld, age 70, of Spirit Lake, IA for 2nd degree murder. One other person was inside the residence at the time of the shooting and was unharmed.

The victim has been transported to the Iowa State Crime Lab in Ankeny, Ia where an autopsy will be performed.

The sheriff’s office is withholding the name of the victim, pending notice to the next of kin.

The sheriff’s office was assisted by the Hawarden Police Department, Sioux Center Police Department, Orange City Police Department, Sioux County Conservation, Rock Valley Police Department, Ireton Ambulance, Ireton Fire and Ireton Rescue.

The incident remains under investigation by the Sioux County Sheriff’s Office.