Tammy Sue Rothganger was 15 when she was last seen on the morning of May 16, 1984, outside Eldon High School in Eldon, Missouri. Living across the street from the school, she left for classes but never went inside. Witnesses saw her get into a blue Plymouth with her mother’s live-in boyfriend, Martin Marty Dean Priest, and his 13-year-old nephew. Tammy wore a sweatshirt, Nike shoes, a chain necklace with an arrowhead pendant, a leather wristband, and had a tattoo of the letter R on her left arm.

Her family reported her missing when she did not return that afternoon. Priest initially told them he had dropped Tammy at Rock Island Park, but friends said no plans had been made for her to skip school. Sandra Rothganger later said Priest told her he had Tammy and that the family would only see her through him. Decades later, Priest’s nephew, David Nicholas, came forward with an account that he and Priest assaulted and killed Tammy in the car, then concealed her body; Nicholas said he tried to show investigators the burial site but Tammy’s remains have not been recovered.

Does anyone from Eldon or Rock Island Park on May 16, 1984, have information that could help locate Tammy’s remains?