Terri McCauley was 18 and a member of the Omaha Tribe of Nebraska when she vanished after a night out with friends in Sioux City, Iowa, in late September 1983. A mother of two described by family as outgoing, she was last seen getting into a vehicle with a man outside a west-side bar. Concern mounted as days passed with no contact.

On October 6, 1983, a person walking a dog found Terri’s body in a wooded area miles from where she was last seen. An autopsy found she died from a shotgun wound to the face. The initial investigation produced few leads and the case went cold, leaving her family without answers.

Decades later investigators revisited the file. In January 2025 a grand jury returned a first-degree murder indictment charging 62-year-old Thomas Duane Popp, who was arrested in Washington state and awaited extradition to Iowa to face trial. Does anyone have information about Terri’s last night in Sioux City or the man seen with her outside the bar?