BULLHEAD CITY, Ariz. (AP) — Authorities say a Minnesota man has fatally shot his fiancée and cousin in northwestern Arizona.

The bodies of 64-year-old Timothy Wayne Albright, 64-year-old Karee Pauline Rowell, and 58-year-old Trisha Lynn Wallin were discovered Sunday night at Wallin’s home in Bullhead City.

Rowell and Rowell lived in Cromwell, Minnesota, but were staying with Wallin.

Police were alerted to the killings by neighbors who were supposed to meet up with Albright, Rowell, and Wallin. When the three failed to show up and didn’t respond to texts, the neighbors went to Wallin’s home and discovered the bodies when looking through the window.

Investigators say they didn’t know Albright’s motive for the killings.