CHETEK, Wis. - Authorities in northwestern Wisconsin say the deaths of two adults and a teenager at a home in Chetek are being treated as a murder-suicide.

The Barron County Sheriff's Department received a call from a girl requesting help around 9 p.m. Friday. Responding deputies found the three dead inside the home. They were identified Saturday as 55-year-old John Hengst, 55-year-old Brenda Turner, and 17-year-old Natalie Turner, all of Chetek. Natalie Turner was a senior at Chetek-Weyerhaeuser High School.

Preliminary autopsy results released Monday state all three died from a single gunshot wound. Brenda Turner also suffered blunt force injuries to her face, neck and torso and also had a broken rib.

Investigators say while they're still piecing the incident together, it appears some sort of fight occurred in the upstairs bedroom and then continued downstairs were Brenda was found dead of a gunshot wound. Police say Natalie made the 911. She was found dead of a gunshot wound in an upstairs bedroom. John was found downstairs, dead from a self-inflicted gunshot wound.

The Chetek Alert newspaper reports that Turner and Hengst divorced in August 2016, based on court records. Hengst was Natalie’s ex-step-father, Fitzgerald said.