At 8 p.m. Tuesday, authorities apprehended a murder suspect in Lake County.
NBC Montana learned officers went to Harry Lozeau's home and arrested him without incident.
Lozeau is suspected in the death of his brother, Terry Lozeau, who was shot and killed over the weekend.
Law enforcement officials found Lozeau's car Monday in the mountainous area east of Ronan.
Officials set up a large-scale search from the ground and air to look for him.