By Dave Thompson, Prairie Public Radio

BISMARCK, N.D. (Prairie Public Radio) – A Morton County jury has found Washburn chiropractor Chad Isaak guilty of the murders of four employees of RJR Maintenance of Mandan.

The murders happened April first, 2019.

The verdicts came after a nearly three-week trial. District Judge David Reich read the verdict.

Isaak was also found guilty of three lesser offenses.

He could face life in prison without parole.

Judge Reich has ordered a pre-sentence investigation.