South Dakota's Mathis Murders: Horror in the Heartland

It was perhaps the most infamous murder case in state history. Ladonna Mathis was shot twice in the head at point-blank range inside the family's metal shed serving as their makeshift home. Two of her three children, ages 2 and 4, were also shot in the head. The brutality of the killings shocked the state and set off a frenzy of law enforcement activity. Despite its intensity, the investigation never found th...