NASHVILLE, Tenn. — Authorities have exhumed the body of the wife of a famed former Tennessee sheriff more than a half-century after she was fatally shot in a still-unsolved killing. The Tennessee Bureau of Investigation confirmed that it oversaw the exhumation of the body of Pauline Pusser on Thursday at Adamsville Cemetery. She was killed by incoming gunfire while in a car driven by her husband, McNairy County Sheriff Buford Pusser, a figure whose legend was captured in the 1973 film “Walking Tall” starring Joe Don Baker and a 2004 remake starring Dwayne “The Rock” Johnson. Various sites in Adamsville...