Thomas Kramer slowly entered the Adams County Courtroom, surrounded by the tight security provided by the Juneau County Sheriff's Department and the Wisconsin State Patrol.
Once seated, Kramer was charged with first-degree intentional homicide, felony theft, and attempted first-degree intentional homicide.
The charges come from an incident last Friday in the Town of Strongs Prairie.
Investigators say the 54-year-old Kramer was threatening township highway workers when they called the Sheriff's department.
Adams County Deputy Michael Shannon responded.
According to the criminal complaint, witnesses from the highway crew saw Kramer shoot Shannon.
Shannon later died from the single gunshot. In all, three shots were fired.
Two by Deputy Shannon and one from Kramer, but no one knows who fired first and in what order.
Kramer’s lawyer says they could use that fact to claim the shooting was in self-defense.
The public defender says Kramer will not be convicted of first-degree intentional homicide, but she declined to lay out her defense in any detail.
Both sides expect the defense to ask for a change of venue. The amount of media coverage and the popularity of Deputy Shannon could make it difficult to find impartial jurors.
Kramer is being held on $1.25 million cash bail.
He will be back in court March 20 for his preliminary hearing.