Quin Edward O'Brien.
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 used an attorney as a shield to leave the courtroom. He was apprehended after taking a social worker hostage and forcing her to drive to Madison, Wisconsin. The man was sentenced to two counts of life in prison. He was up for parole in 2000, and it was denied for another 20 years. Sergeant O'Brien was a United States Army and Marine veteran. He had served 24 years with the Waukesha County Sheriff’s Department.
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In tribute
I served 1985 to 1993. You served too, before the badge - different uniform, same idea. You go where you are sent and you do not get to pick the call.
Sergeant O'Brien gave the Waukesha County Sheriff's Department 24 years.
Thank you for your service to the Waukesha community, and for your service before it. Gone but never to be forgotten.
Rest easy, brother.
— S. Vincent Anthony, U.S. Army 1985-1993
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