Co-owner of business where 4 slain says she has no clue why

MANDAN, N.D. (AP) — The co-owner of a North Dakota business where four people including her husband were slain says she and others have no idea why the suspect would target anyone at the company.

Chiropractor Chad Isaak is charged with felony murder in the April 1 deaths of RJR Maintenance and Management co-owner Robert Fakler and three workers in Mandan. Jackie Fakler says the victims were in different areas of the building and were killed within 13 minutes.

Isaak lived on property managed by RJR, but police haven’t identified a motive. Fakler said rumors including that RJR was raising Isaak’s rent or had ordered him to get rid of his dog are false.

Fakler says RJR officials had few interactions with Isaak. Marketing executive Ben Pace says those interactions “were all very normal.”