Authorities in Miller County are investigating two deaths that may be attributed to J.T. McLean, who had earlier been charged for the deaths of a woman and her daughter south of Columbia in Boone County last month.
On Thursday, McLean was found dead in a car at a motel north of Sioux City in South Dakota. Investigators say he died by suicide.
McLean is accused of the August 22nd deaths of 43-year-old Allison Abitz and her 11-year-old daughter in their home.
Miller County authorities say he is also tied to the deaths of a couple in Kaiser at their home. A well-being check by deputies Wednesday found 74-year old Daniel Stephan and 64-year old Pamela Stephan dead.
Authorities said McLean stole a vehicle from one of the victims in Miller County. Investigators used the OnStar tracking system inside the stolen vehicle to track it to the area.