The murders of Larissa Dumansky and Piper StreyleSioux Falls, SD is the largest city in South Dakota, snuggled near the eastern border with Minnesota and Iowa’s northeast corner. You can often find it on some list of the Best Places to live. Almost 30% of the state’s population can be found in the Sioux Falls “Metro” Area. (yes I used airquotes)Over 2 decades has passed since the confusion, worry and ultimately the realization of the predator that lurked among South Dakota’s east river metropolis.Hunting and studying women from all over the areas in and outside of Sioux Falls. A predator that was insidiously astute, patient and decisive preyed upon unsuspecting women. A creature lived beneath an exterior that was dangerously unnoticeable.In August, 1994 Larisa Dumansky disappeared after a long night at work. The night shift at the John Morrell’s meat packing plant was hard work, but Larisa was up for the task. She and her husband Bill immigrated from Ukraine in 1991, determine...