Sergeant William Gruenes

Sergeant William Gruenes

Johnsburg Police Department, Illinois

End of Watch Friday, January 24, 2003

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William Gruenes

Sergeant William Gruenes was killed when his vehicle collided with another vehicle being driven by an intoxicated driver at the intersection of Thayer Road and Johnson Road in McHenry County.

He was en route to have film developed as part of an ongoing missing person investigation. The photographs been taken overnight and the task force's commander had asked that the film be developed and brought to the 10:00 am briefing.

The driver of the vehicle that caused the collision had run through a stop sign. She pleaded guilty to driving under the influence of marijuana in 2005.

Sergeant Gruenes had served with the Johnsburg Police Department for six years. He is survived by his wife and two children.


  • Age 33
  • Tour 5 years
  • Badge Not available

Incident Details

  • Cause Vehicular assault
  • Weapon Automobile; Narcotics involved
  • Offender Convicted

Most Recent Reflection

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RIP Sgt. Gruenes, I had the pleasure working for you side by side. You are one of the most dedicated Officers to ever wear the badge. Many times since your that day, I have reflected on that time and still do in my retirement. I am sure you have seen from above I was injured myself, ending my career early. However never near the ultimate sacrifice you and your family has made to protect and serve the public. Knowing you during this time, I know you are ok in gods hands brother. Until the next time we meet, keep watch over your family, everyone else has the rest. I was happy to see that you have been finally honored in the manner you served, which was never a question in my mind from the day you left us all.

Ofc/Det. Todd Colander
Johnsburg, IL

December 3, 2020

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