The body of a woman found in Missouri in 1981 has been identified via DNA match exactly 40 years later, sheriff officials said. Karen Kay Knippers, whose body was discovered at a low river crossing near Dixon on May 25, 1981, was later buried as a “Jane Doe” at Waynesville Cemetery after authorities were unable to identify the apparent homicide victim, the Pulaski County Sheriff’s Office announced Tuesday. The unidentified remains were exhumed in 2015 in hopes of getting DNA evidence after a detective became interested in the case and requested approval to take another look, sheriff officials said.