On May 25, 2001, 22-year-old Karyn Slover left work at a newspaper office in Decatur, Illinois, excited to pick up her son and head home. She never made it. Her car was found abandoned on a bridge hours later, engine running, purse inside—but no sign of Karyn. Then came the horror. Days later, her dismembered body was discovered in duffel bags floating in Lake Shelbyville. The bags were filled with concrete and duct-taped shut. Investigators found dog hairs, glitter, and a unique type of concret