Fresno County jury to hear Oak Fire case against Mariposa man

Fresno County Superior Court has taken the Oak Fire case out of Mariposa County, putting a Fresno County jury in charge of deciding whether Edward Frederick Wackerman deliberately ignited one of the most destructive wildfires in Mariposa County history. The move came with a gag order meant to shield potential jurors from outside influence, underscoring how closely the court is guarding the fairness of a trial tied to a fire that reshaped lives across the foothills.

Prosecutors allege Wackerman is responsible for the blaze that CAL FIRE says started July 22, 2022, at about 2:10 p.m. near Highway 140 and Carstens Road, near Midpines. Court filings said the crime occurred on or about July 10, 2022, at approximately 2:15 p.m., and the Mariposa County District Attorney’s Office has charged him with four counts, including one aggravated arson count and three forest-land felony counts. If convicted, Wackerman could face a maximum sentence of life in prison.

The Oak Fire burned 19,244 acres and was eventually fully contained, but the damage extended far beyond the burn perimeter. ABC30 reported the fire destroyed 127 homes and 66 outbuildings, caused more than $8.3 million in property loss, and generated more than $100 million in CAL FIRE response costs. For Mariposa County residents still living with the aftermath, the case is not just about how the fire started, but whether criminal accountability can match the scale of the loss.

Wackerman was arrested by CAL FIRE law enforcement officers and Mariposa County authorities on June 16, 2023, after investigators identified him as the suspect. He was later released from jail in December 2025 on pretrial medical grounds and fitted with an ankle monitor, with the original Mariposa County conditions still in place. The case now proceeds in Fresno County after both sides agreed a Mariposa jury pool would be too exposed by local experience, a concern sharpened by reports that about 6,000 people were evacuated during the fire.

That history makes the venue change more than a procedural shift. Fresno County jurors will be asked to weigh evidence about a wildfire that hit Mariposa County hard, to consider whether prosecutors have proved the charges beyond a reasonable doubt, and to decide whether the state has met its burden in one of the region’s most serious arson cases. For victims, the trial is a long-delayed chance at a criminal finding that could validate their losses; for the county, it is a test of whether the courts can impose accountability for a fire that still defines the public record.