A court hearing for the man accused in four homicides in Mandan has been postponed until this summer.
Chad Isaak, a 44-year-old Washburn chiropractor, is charged with four counts of murder and other crimes in connection with the April 1 shooting and stabbing deaths of RJR co-owner Robert Fakler and employees Adam Fuehrer and Bill and Lois Cobb at the company's office in Mandan.
He was set for a preliminary hearing Tuesday, where he would enter pleas to his charges. That hearing has been rescheduled to Aug. 12 before South Central District Presiding Judge Gail Hagerty at the Morton County Courthouse in Mandan.
Morton County prosecutor Gabrielle Goter said in a court document filed Wednesday the amount of evidence in the case is "extensive," requiring up to 90 days for review.
Court records show Isaak has retained four attorneys in the case.
Mandan police and court documents allege Isaak killed the four people at the business. Law enforcement relied on a video trail of the suspect vehicle in their investigation, which led them to arrest Isaak without incident in a traffic stop April 4 in Washburn.
Investigators reportedly found evidence in Isaak's home including clothing, parts of a handgun, a knife and used shell casings, among other items with an odor of bleach, court records say.
A motive for the killings is not known. Mandan Police Jason Ziegler has said the attack "was very specific to the victims that were involved." Isaak lived in a mobile home park managed by RJR.
Isaak appeared in court once, for his initial appearance where a judge set his bond at $1 million cash.
He is being held at the Burleigh Morton County Detention Center. He faces up to life in prison without parole if convicted of murder.