(KNZA)--A jury trial has been set for a former Doniphan County Sheriff's deputy facing multiple charges.

According to court documents, District Court Judge John Weingart signed an order earlier this month setting a five-day trial for Nathaniel Keller, beginning September 18, in Doniphan County District Court. A pre-trial conference was set for June 14.

That comes after Lenexa attorney Adam Zenter was appointed to serve as special prosecutor in the case. Zenter is a former assistant attorney general for the state of Kansas.

Keller has pleaded not guilty to 15 counts. He is charged with sex crimes allege to have occurred in 2017 with a child 14 or older, but less than 16 years of age. Keller is also charged with domestic-related offenses alleged to have occurred in 2019 and 2021.

He was arrested in June of 2021 after Kansas Bureau of Investigation agents served a search warrant on his home.

Keller remains free on a $500,000 bond.