Man arrested in quadruple murder at workplace

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A man has been arrested in connection to a quadruple murder inside a North Dakota workplace, police said.

Chad Isaak, 44, from Washburn, North Dakota, is being held on four counts of AA felony murder, Mandan Police said at a news conference late Thursday. He is being held at the McClean County Jail.

The victims — an owner and three employees — were found dead Monday morning at RJR Maintenance & Management, a property management company in Mandan, said Mandan police.

While the causes of death have not been released, the victims were all shot or stabbed, police said.

Isaak’s car was identified at the scene of the shooting by surveillance cameras, officials said. Investigators later located the vehicle in Washburn.

The suspect was arrested during a traffic stop Thursday, police said.

Evidence in the vehicle gave investigators enough probable cause to make an arrest, according to Police Chief Jason Ziegler.

The location where the suspect lived was a mobile home park managed by RJR, but police are not sure if that is part of the motive, Ziegler said.

The victims

Among the victims in the shooting was employee Lois Cobb, 45.

“I don’t know how it happened,” Cobb’s daughter, Briann Miller, told The Associated Press. “I’m left in the dark still. None of this makes any sense. All I know is my parents are gone.”

Cobb’s husband, employee William Cobb, 50, was also among the dead.

Family and friends console each other at the scene near the south side of the RJR Maintenance and Management building in Mandan, N.D., April 1, 2019.(Mike McCleary/The Bismarck Tribune via AP) Family and friends console each other at the scene near the south side of the RJR Maintenance and Management building in Mandan, N.D., April 1, 2019.

Miller, of Illinois, told the AP her mother and stepfather moved from Illinois to North Dakota six years ago and recently purchased their dream home.

“They were true soulmates, “Miller told ABC Springfield, Illinois, affiliate WICS.

The other victims were owner Robert Fakler, 52, and employee Adam Fuehrer, 42, said police.

Cars are parked outside RJR Maintenance and Management in Mandan, N.D., April 1, 2019.(Mike McCleary/The Bismarck Tribune via AP) Cars are parked outside RJR Maintenance and Management in Mandan, N.D., April 1, 2019.

Authorities do not believe the public is in danger – Ziegler said the crime “was very specific to the victims that were involved.”

“I don’t think any community across this great country could ever imagine something like this happen in their backyard,” the chief added, calling the crime “devastating” for the community.

The chief called RJR Maintenance & Management a “reputable company in our area.”

There were security cameras inside the building but the chief did not say if the crime was on video.

ABC News’ Emily Shapiro and Darren Reynolds contributed to this report.

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