Police investigate a three-vehicle crash that left a man dead and another seriously injured at Route 12 and Volo Village Road in Volo Monday evening | Photo: Woo-Sung Shim / Lake and McHenry County Scanner.

The Lake County Coroner’s Office has identified the 82-year-old Lake Zurich man killed in a head-on crash in Volo Monday evening that left a 20-year-old man with serious injuries.

Leroy Radtke, 82, of Lake Zurich, died of multiple injuries due to blunt force trauma from a vehicle crash and toxicology results are pending, Lake County Coroner Dr. Howard Cooper said Thursday evening.

The Wauconda Fire Protection District and Lake County Sheriff’s Office responded around 5:50 p.m. Monday to Route 12 and Volo Village Road for a report of a three-vehicle crash with injuries.

The Lake County Sheriff’s Office said that a 1995 Mazda convertible, driven by Radtke, was traveling southbound on Route 12 when it crossed over into the northbound lanes.

Lake County Sheriff Spokesman Sgt. Christopher Covelli said that Radtke’s Mazda struck a northbound 2005 Toyota sedan, driven by a 20-year-old Lake in the Hills man.

The Toyota rotated into the path of a southbound 2008 Subaru SUV, driven by a 27-year-old McHenry man, causing the Subaru to become involved in the crash as well.

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Radtke was pronounced dead at the scene. The driver of the Toyota was transported to Advocate Condell Medical Center in Libertyville with serious injuries. The driver of the Subaru was uninjured.

“We have been in close contact with Mr. Radtke’s family and our deepest condolences go out to them during this difficult time. This is truly a tragedy,” Cooper said.

Later at the scene, an auxiliary deputy blocking traffic was injured after he had his squad car struck by a DUI driver. The deputy suffered non-life-threatening injuries and was transported to the hospital.

The crash remains under investigation by the Lake County Sheriff Technical Crash Investigations Team and the Lake County Coroner’s Office.