September 22nd DIP NEWS.

Grant County, Wisconsin – On. September 22, 2023, at approximately 8:37 a.m., the Grant County Sheriff’s Office was contacted about a suspect threatening to harm individuals currently at school in Grant County area high schools (Potosí, Cassville, and River Ridge). Due to the specific threats made to specific individuals, deputies immediately took steps to ping the suspect’s phone to see if he was in the area. It was determined he was several hours away, but alerts were sent statewide to law enforcement agencies attempting to locate (ATL) the individual making the threats. Although the subject was not in Grant County, the Sheriff’s Office sent at least one law enforcement officer to each of the schools.

Shortly after the ATL was sent, authorities in Dane County, WI, located a vehicle occupied by Jonah A. Riley, age 19 of Madison, WI, the suspect in this incident. Law Enforcement conducted a traffic stop on the vehicle and took Riley into custody. Riley was arrested on multiple outstanding warrants through Grant County, and charges are pending for the threats to the individuals here in Grant County. Riley was transported to Iowa County, where a Grant County Deputy took custody of him. This incident remains under investigation.

The Grant County Sheriff’s Office would like to thank the Wisconsin State Patrol and Dane County Sheriff’s Office for their assistance with this investigation.

Due to Jonah Riley being taken into custody, there is no threat to the public.

**Persons arrested/or referred for charges by the Grant County Sheriff’s Office are presumed innocent until proven guilty by a court of law. An arrest only indicates probable cause exists to bring formal charges. ** The names of victims and witnesses to a crime have been withheld per Wisconsin Statute §950.0.