Bio & Incident Details
Tour: 24 years
Badge # Not available
Weapon: Officer's handgun
Offender: Sentenced to life
Sergeant O'Brien and Deputy Michael Geszvain were shot and killed when a prisoner gained control of Deputy Geszvain's service weapon. The officers were standing in court with the prisoner when the incident occurred. The suspect exchanged shots with another deputy on the first floor of the courthouse. Sergent O'Brien was transported to a local hospital where he succumbed to his injuries the following day.
The suspect was apprehended after taking a hostage and forcing her to drive to Madison, Wisconsin. The man was sentenced to two counts of life in prison.
Sergeant O'Brien had served 24 years with the Waukesha County Sheriff’s Department.
Related Line of Duty Deaths
Deputy Sheriff Michael Geszvain