Captain Shirley Gibbs Russell, 31, vanished from the Quantico, Virginia, Marine base on March 4, 1989. She had just finalized a marital settlement and made a down payment on a new condominium the day before her disappearance, and was last seen with her estranged husband, Robert Peter Russell, while they were cleaning out their former shared quarters. Robert said he last saw her walking to a store to buy paint.

Investigators focused on Robert amid a troubled marriage that included allegations of abuse and infidelity and his recent dishonorable discharge. Prosecutors contended Shirley was killed in a storage shed, dismembered, and her remains dumped in a Pennsylvania mine shaft. The case rested on circumstantial evidence cited at trial: Robert’s purchase of a .25 caliber pistol days before Shirley disappeared and a recipe for murder found on a computer disk. No body, murder weapon, or witnesses were ever produced.

In 1991 Robert Russell was convicted of first-degree murder and sentenced to life without parole. Shirley’s passport and driver’s license were never recovered, there has been no activity on her bank or credit accounts, and her stored personal belongings remain untouched. Did anyone who knew Shirley or the Russells notice unusual behavior or movements around Quantico in early March 1989?