The Waterloo Fire Department responded along with police and EMS personnel to the Waterloo Walmart back parking lot for an overturned vehicle with entrapment shortly before 6 a.m. Friday.
Waterloo police said a Dodge Ram truck driven by a man struck pallets at the southwest corner of the Walmart parking lot and overturned. The man was pronounced deceased at the scene.
Emergency personnel cleared the crash scene shortly before 8:30 a.m.
Monroe County Coroner Bob Hill identified the deceased as 47-year-old Jason Helberg of East Carondelet. He was the sole occupant of the truck, which overturned after hitting numerous pallets, Hill said. He was not wearing a seat belt.
Preliminary scene investigation conducted by Hill appears to show Helberg may have suffered a medical event prior to the crash.
An autopsy and toxicology results are pending.
Funeral arrangements for Helberg are pending at Leesman Funeral Home, Dupo.