Tommi Hintz described how she became increasingly suspicious of her two friends, eventually learning of the homicide but still assisting in the disposal of Ricky Balsimo's remains in Lake Superior.
A seemingly happy family ended in tragedy after the father bludgeoned his wife to death, suffocated his 9-year- and 22-month-old children, lit his house on fire and then hanged himself 38 years ago.
Algene Vossen, arrested after DNA evidence linked him to a 1974 killing in Willmar, has been found by a Kandiyohi County District Court judge to be incompetent to stand trial. The Minnesota Court of Appeals has affirmed that ruling.
As viewers rush to binge-watch 'Conversations with a Killer: The John Wayne Gacy Tapes' Netflix’s latest true crime series on John Wayne Gacy, Minnesotans are reminded that two of the Killer Clown’s victims called Minnesota home.
The Mathis case, the trial and the questions that remain to this day are the subject of a new book, "South Dakota's Mathis Murders: Horror in the Heartland" by long-time South Dakota journalist Noel Hamiel. The book is available to purchase on Monday.
The study, conducted by researchers from University of Pennsylvania and the United Kingdom, looked at 41 states, and over 170,000 firearm homicides over 18 years.