MISSOULA, Mont. -

65-year-old Dennis Schowengerdt, according to Powell County Sheriff Scott F. Howard, is accused of murdering his wife at their home near Racetrack, outside Deer Lodge over the weekend.

Our partners at The Missoulian told us Howard confirmed that Schowengerdt, a retired mechanic, drove to the station at about 8 a.m. Sunday and told officers he killed his wife, 66-year-old Tina Schowengerdt, at their home near Racetrack outside of town.

Dennis Schowengerdt confessed to the crime and did not show any remorse, Howard told reporters Monday morning. The murder was committed in the couple's living room using a large "Rambo-style" knife.

Howard described the attack as violent and angry.

And it appears the couple had had domestic violence problems before with the Sheriff telling both NBC Montana and The Missoulian Schowengerdt stabbed his wife several times.  

Tina Schowengerdt was 66-years old.