UPDATE: Officer Involved Death in Rock County, Wis.

Dec 13 2019

MADISON, Wis. – The Wisconsin Department of Justice (DOJ) Division of Criminal Investigation (DCI) is investigating an officer involved death (OID) in the city of Beloit, Wis. that occurred the morning of Tuesday, December 10, 2019.


This incident started at 11:42 a.m. on December 10 at Henry Avenue and Riverside Drive when a Rock County Sheriff’s Office Deputy observed a vehicle believed to be stolen and reported hearing shots fired. After a brief pursuit, the suspect fled from the vehicle and a foot chase ensued. Beloit Police officers responded to assist and were looking for the suspect in the area.


Several minutes later, the suspect was located in the 1800 block of Harrison Avenue where he was observed to be armed. Three Beloit officers fired at the suspect, who received fatal injuries. The suspect was pronounced deceased at 12:25 p.m.


Three Beloit police officers fired at the suspect, Montay Penning, during the incident. The involved officers, currently on administrative duty until the conclusion of the investigation, are:

  • Patrol Officer John McMahon, 29 years at Beloit Police Department;
  • Sgt. Ryan Flanagan, 19 years at Beloit Police Department;
  • Detective Nathan Adams, 14 years at Beloit Police Department.


DCI is leading this investigation, and is assisted by Wisconsin State Patrol, Wisconsin State Crime Lab, Beloit Police Department, and the Rock County Sheriff’s Office. All involved law enforcement are fully cooperating with DCI during this investigation.


DCI is continuing to collect evidence and determine the facts of this incident and will turn over investigative reports to the Rock County District Attorney when the investigation concludes.


No additional details are currently available.


Please direct all media inquiries regarding this incident to Wisconsin DOJ.