Theresa Barutcievich is in Harnett County jail without bond.
Authorities say she drove up to the Cross Creek Police sub-station in an RV, and told police her husband, Christopher, was dead inside the vehicle.
Investigators believe the crime occurred in Dunn, where the husband was last seen alive.
An autopsy is being performed to determine how he died.
Theresa Barutcievich is scheduled to make her first court appearance Monday in Lillington.
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