Authorities Investigating Murder Case In Sheldon

Sheldon, Iowa — Authorities suspect a homicide in Sheldon, and an arrest has been made in connection with the case.

According to the Iowa Department of Public Safety (DPS), at around 4:00 p.m. on Thursday, March 23, 2023, the O’Brien County Communication Center received a 911 call about a deceased female located at 604 4th Avenue in Sheldon. They tell us that when authorities arrived, they found the female deceased inside her home. The death is being treated as a homicide investigation. The DPS says an autopsy has been scheduled for Saturday, March 25, 2023, at the Iowa Office of the State Medical Examiner, in Ankeny.

Around noon on Friday, March 24, 2023, authorities arrested 41-year-old Nathaniel Byron Kassel of Rock Rapids in Flandreau, South Dakota on two Iowa arrest warrants. One was for murder in the 1st degree, a class A felony. The other was for felon in possession of a firearm, a class D felony.

If you have any information regarding this investigation, you are asked to call the Sheldon Police Department at 712-324-2525, or you can call the Department of Criminal Investigation (DCI) at 712-224-7680.

The DPS says this is an ongoing criminal investigation; no further details or names are being released at this time.

According to the Flandreau Santee Sioux Tribe Police Department, who made the arrest, the victim is allegedly Kassel’s mother. They tell us that their Chief of Police, Brian Arnold, noticed a vehicle that fit the description provided by the Iowa DCI at their Royal River Casino and Hotel, and notified other agencies of the discovery. They tell us Kassel was apprehended outside the Native Nations Cannabis Dispensary in Flandreau.