MANDAN, N.D. — The trial of a chiropractor accused of killing four people on April 1, 2019, in Mandan has been delayed again.

Morton County District Judge David Reich signed a notice on Tuesday, May 11, to move the start of Chad Trolon Isaak's 15-day trial from June 7 to Aug. 2.

Isaak, 46, faces four murder charges for allegedly stabbing and shooting RJR Maintenance and Management co-owner Robert Fakler, 52, as well as employees Adam Fuehrer, 42, and William Cobb, 50, and Lois Cobb, 45.

The defense asked for a continuance to get its attorneys up to speed on the case, said Luke Heck, a Vogel Law Firm attorney who is representing Isaak. This is the fourth time the trial was moved.

Reasons for rescheduling previous trial dates included a judge in the case retiring and concerns for safely hosting a trial during the coronavirus pandemic.

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The latest decision to delay the trial comes days after a judge allowed defense attorney Robert Quick to leave the case. Isaak filed a complaint against Quick, meaning the attorney had a conflict of interest and could no longer work for him.

Vogel Law was kept on as Isaak’s defense team.