The woman who was involved with stealing a military veteran's benefits charged her plea in Great Falls.
On Friday morning, Katelyn Craft entered a plea of guilty to two felony counts of deceptive practices.
Her ex-husband, Brandon Craft, will stand trial next month for the murder of Adam Petzack.
According to the plea agreement, Katelyn has agreed to testify against her ex-husband at his trial next month.
Court documents say Petzack was living with the Crafts at the time of his disappearance.
Katelyn opened a Square account which was connected to Petzack's bank account and linked it to Brandon’s bank account.
Detectives discovered large withdrawals were made from the Craft's account on the same days deposits were made in the Square account.
The couple were arrested in Washington and Brandon told detectives what had happened to Petzack.
Katelyn will be sentenced after Brandon’s trial.