Cooper initially told police his wife went jogging and never returned. Her body was discovered near the couple's home by a man walking his dog.
Cooper was charged in October, four months after her body was discovered.
Nancy Cooper's sister in Canada has custody of the couple two little girls, along with Nancy's parents. That decision was made by a court last July.
There was supposed to be a continuation in the custody case this June, but Cooper has requested through his attorneys that the custody issue be continued until his criminal trial is over.
Cooper will not face the death penalty in the case.