STILLWATER, Minn. (AP) — Police in Stillwater are investigating how a man ended up stabbed to death in his house.

The St. Paul Pioneer Press reports police received a call about a domestic disturbance that possibly involved a knife at a home a block from their downtown headquarters Friday. Officers arrived to find 59-year-old William Mark Scheel and his son, 30-year-old William James Scheel, severely injured.

The Washington County Sheriff's Depatment said in a news release Saturday that the elder Scheel died of his wounds. His son was in critical but stable condition at a St. Paul hospital.

Investigators are treating the incident as a homicide. The release said there's no further threat to the community.