MANDAN, N.D. – A Bismarck attorney is asking to withdraw as counsel for a man accused of killing four people in Mandan two years ago, citing a disciplinary complaint against him filed by the defendant.

It’s unclear how the withdrawal, if granted, would affect the timing of Chad Isaak’s trial scheduled to start June 7. In his request, attorney Robert Quick says the complaint presents a conflict of interest and that he is obligated to end his representation of Isaak.

The 46-year-old chiropractor is accused of killing RJR Maintenance and Management co-owner Robert Fakler, employees Adam Fuehrer and William and Lois Cobb on April 1, 2019.