Brandenburg Jr. of Chicago, Illinois. Karen Knippers, aka "Pulaski County Jane Doe (1981)" On May 25, 1981, the body of a young white (with possible Native-American and Hispanic admixture) female was discovered in a low water crossing near Highway MM, just north of Dixon, Missouri. She had been beaten and strangled to death with a pair of pantyhose. She was between 25 and 40 years old, was between tall, and weighed . She had black hair and brown or hazel eyes. She was also found to have a slightly darker complexion and high cheek bones. She also had a full upper denture plate. She was found wearing a dark blue long-sleeved blouse with white pinstripes, blue jeans, blue bikini panties, and a bra with the name "Jubel", "Julie", or "Juliet" written on it. Isotope testing determined that she had only lived in Missouri for a few years before her demise, and was likely from the Southeastern US, between Texas, Georgia, and Florida. The DDP began investigating her identity in May 2019. Investigations uncovered an extensive family tree during their investigation. On May 25, 2021, she was positively identified as 32-year-old Karen Kaye Knippers of St. Louis, Missouri. Dawn Plonsky Wilkerson, aka "Simpson County Jane Doe" On October 9, 2001, the skeletal remains of a young white female were found by a survey crew at the bottom of the shoulder of I-65 near the Tennessee state line in rural Simpson County, Kentucky. The cause of death was not ascertained, but the case was deemed a homicide due to the circumstances. She had been deceased for between two weeks and two months. She was estimated to be between 25 and 35 years old, was between tall, and weighed between . She had long reddish-brown or reddish-blonde hair. She also had a healed fracture on her upper right arm, and a tattoo of the outline of a rose on her left breast. She had a scar on her face and right wrist. She was missing multiple teeth and had very poor dental health. She also had given birth to a child in the past and may have been pregnant when she died. She was found wearing a white or tan shirt, blue cotton shorts, and black sandals. Two rings were also found near the body: a gold wedding-style band and a sterling silver ring in a guilloche cigar band style, with a painted