Chad Isaak the Washburn man accused of killing four people in Mandan in April has waived his preliminary hearing that was scheduled for this coming Monday, August 12th.

Isaak submitted a not guilty plea, Morton County has set a two week trial for March 2-13 of 2020.

Isaak faces 7 different charges, including four counts of AA felony murder. He also faces burglary, unlawful entry within a vehicle and unauthorized use of a motor vehicle.

AA felony murder is punishable by up to Life in Prison if convicted.

On Monday April 1st, 2019 at 7:29 a.m., Mandan Police responded to a medical call at the RJR Maintenance and Management building.  Once on scene, officers found four individuals deceased.  The victims had suffered stab wounds and/or gunshot wounds. 

Many hours of video surveillance were reviewed by investigators and a suspect vehicle was identified.  Further investigation led to McLean County Sherriff’s Office locating the vehicle in Washburn.  McLean County Deputies conducted a traffic stop on the suspect vehicle and detained Isaak while a search warrant was executed on the vehicle. 

Evidence discovered on Isaak and in the vehicle provided probable cause to place Isaak under arrest for the murders.