MASON CITY, Iowa – Authorities have ruled the August death of a North Iowa man an accident.
65-year-old Dennis Marvin Mertz of Mason City was found in the street in the 1600 block of South Carolina Avenue on August 11. He was transported to Mercy Medical Center – North Iowa, where Mertz was pronounced dead.
The Mason City Police Department on Wednesday said their investigation concluded that Mertz had been on a ladder, trying to deal with a tree branch damaged by a recent thunderstorm, when he fell and landed on the street in front of a northbound semi.
Police believe the semi’s back tires drove over Mertz.
No charges have been filed against the driver of the semi, 54-year-old Kevin L. Casad of Kincaid, Illinois. Casad reported that he saw Mertz fall from the ladder, stopped to help him and called 911.
The Mason City Police Department says Mertz died from blunt force injuries and no criminal or traffic laws were violated.