The owner of a North Dakota property management business where four people were found dead Monday was among those killed, the Associated Press reports.

Robert Falker, 52, the owner of RJR Maintenance and Management Company in Mandan, was among those killed under mysterious circumstances on Monday, according to the report. As CrimeOnline previously reported, a young woman told the Associated Press ahead of a police news conference on Tuesday that her mother and stepfather were among the dead, and told the news outlet that she had no idea what happened to them or why.

Mandan police officially identified all four victims in a news conference on Tuesday: Falker; Lois Cobb, 45; her husband, Bill Cobb, 50; and Adam Fuehrer, 42. All of the victims worked for the company.

Police still have not released the cause of death, and they have not located the murder weapon or a suspect. They also don’t believe the deaths are a result of a murder-suicide. 

But local authorities insist there is no danger to the public, as the crime scene indicates that the murders were “specific to the people who died,” according to the Associated Press. Still, police have not determined a motive.

“I just know that it was an attack,” Briann Miller, whose mother Lois Cobb was killed, told the Associated Press. “I don’t know how it happened, what it happened with. I’m left in the dark still. None of this makes any sense. All I know is my parents are gone.”

CrimeOnline will continue to provide updates as more information becomes available.

[Feature image: AP Photo/Blake Nicholson]