LINCOLN COUNTY - Last summer, a Lincoln County highway worker died when a car crashed into him in a work zone.
Marcus Wydeven, 50, worked for the Lincoln County Highway Department for nearly two decades.
Police say then 84-year-old Mary Robinson of Antigo was the driver.
But it wasn't until more than a year later, prosecutors decided to charge Robinson with homicide by negligent use of a vehicle.
Robinson appeared in court for the first time on Friday.
Lincoln County District Attorney Donald Dunphy said it took a year to charge Mary Robinson because state patrol and the sheriff's office didn't finish the crash investigation until a few months ago. He said it took him some time to go over the investigation and come to this decision.
According to the criminal complaint, Robinson drove past three warning signs on Highway 17 before hitting Marcus Wydeven, who was wearing a reflective vest and holding a stop sign.
Investigators say Robinson was driving between 50 and 60 miles an hour when her car hit Wydeven.
"Was there criminal negligence? Which is defined as negligence to a high degree," Dunphy said. "Now, that requires more than blowing a stop sign and hitting somebody. And I had to go through every page of those documents to make sure that this wasn't just an accident."
Dunphy asked for a $5,000 signature bond.
He said he thinks given her age, her potential sentence, if convicted, will be mitigated.
He added he's never had a defendant age 85 or older.
"I don't believe a defendant like this belongs in jail," Dunphy said. "At least not pre-conviction. I have no doubt that she will show up for her court appearances."
Robinson's son came to court with her, and said it's a terrible situation and they are sorry for it.
Robinson will be back in court in September.