(KNZA)--A jury trial has been set for a Holton man accused of fatally shooting his father in 2018.

Jackson County Attorney Shawna Miller told MSC News that 50-year-old Derrick Bohnenkemper pleaded not guilty Friday to charges in Jackson County District Court.

He is charged in an amended complaint with one count of first-degree murder, five counts of aggravated assault on a law enforcement officer and one count of aggravated assault. 

Bohnenkemper had originally been charged with five counts of attempted capital murder but the charges were reduced to aggravated assault on a law enforcement officer.

A 5-day jury trial was set, beginning August 17.

Bohnenkemper is accused of fatally shooting his 73-year-old father, Gaylen Bohnenkemper, on September 18, 2018.

The elder Bohnenkemper was found inside a residence north of Holton after his son surrendered to authorities following a more than five hour armed standoff, during which shots were fired at officers.

No officers were injured.