Rocio Sperry was a fifteen-year-old girl who is believed to have been murdered by Robert Browne, who confessed to another 48 murders. Sperry's case was shown briefly on the episode detailing the killing of Heather Church.
Rocio's body was never found.
Sperry disappeared between November 9 and November 15, 1987 when her husband was away in Florida. At their home, broken glass and blood was found at the scene.
In 2005, while incarcerated for the 1991 slaying of Heather Church, Robert Browne confessed to killing Sperry and disposing of her body in a dumpster.
Another 47 confessions were made by Browne.