By JAMES MacPHERSON
MANDAN, N.D. (AP) — A man convicted of killing four people in what authorities say was one of the most gruesome crimes in North Dakota history has been sentenced to multiple life prison terms without the possibility of parole. Judge David Reich sentenced 47-year-old Chad Isaak on Tuesday to four consecutive life terms. He was convicted of fatally shooting and stabbing RJR Maintenance & Management co-owner Robert Fakler, and employees Adam Fuehrer, William Cobb and Lois Cobb, at the company’s building in Mandan on April 1, 2019. Investigators say the victims were stabbed more than 100 times, total. Defense attorneys say police overlooked or ignored other possible suspects. Prosecutors say the evidence pointed to Isaak, though they didn’t establish a motive.