Stacey Lynn Siegrist, 19, was murdered on May 5, 1990, in Rubidoux, California. She and her boyfriend, 21-year-old Anthony Gianuzzi were found along a dirt power line access road near Canal and Alta streets after being missing for nearly two days. Both had been shot twice, once in the side of the head and once in the back of the neck; Stacey had been sexually assaulted.

Years later DNA evidence linked Alfredo Rolando Prieto, a convicted serial killer and rapist, to the Rubidoux double homicide. Prieto was already on California’s death row for a 1992 rape and murder, and investigators believe he may have had one or two accomplices in the killings of Stacey Siegrist and Anthony Gianuzzi, though no additional suspects have been publicly identified. Riverside County’s cold case unit submitted evidence from the scene to a private laboratory in 2010, which confirmed Prieto’s involvement; the sheriff’s department delayed announcing the match to avoid influencing jurors in a Virginia trial.

Does anyone have information about Stacey’s or Anthony’s last known movements or about suspicious activity near Canal and Alta streets in early May 1990?