The Wauconda man who was pronounced dead following a single-vehicle crash in unincorporated Harvard on Saturday evening has been identified by the coroner.

At approximately 7:05 p.m. on Saturday, the Harvard Fire Protection District and McHenry County Sheriff’s Department responded to the scene of a single-vehicle traffic accident in the 6500 block of White Oak Road in unincorporated Harvard.

Authorities said that the investigation indicated that a 2015 Dodge Dart, driven by Matthew D. Grey, 39, of Wauconda, was traveling eastbound on Hunter Road. Grey failed to stop at the stop sign at the intersection of Hunter Road and White Oaks Road.

The vehicle proceeded through the intersection and over a berm west of the intersection, which resulted in it going airborne and landing on its roof, officials said.

Grey, who was the only one in the car, was pronounced dead at the scene. He was wearing his seat belt and alcohol does not appear to be a contributing factor at this time, sheriff’s officials said.

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A preliminary investigation by the McHenry County Coroner revealed that the cause of death was traumatic positional asphyxia.

The investigation is ongoing by the McHenry County Sheriff’s Office Major Traffic Crash Investigations Unit and the McHenry County Coroner’s Office.