Tanya Shannon, 40, disappeared December 5. Investigators think she and her husband were driving home from a holiday party when their car crashed. Dale Shannon died.
A downstate newspaper reported the Dale Shannon's blood-alcohol level was more than three times the legal limit.
Police found footprints in the snow leading away from the car, but they have not located Tanya Shannon.
According to court documents, she had accused her husband of mental cruelty. The Shannons have four daughters. A paternal aunt and uncle have filed a petition for guardianship.
