Although the evidence isn't as strong as in Jeanifer Weldon's case, James Duckett is also considered a suspect in the case of an unidentified young woman who was found in a water-filled ditch off Combee Road in 1986.
The Sheriff's Office hasn't had any success in identifying the woman, whom detectives think was 20 to 30 years old, but possibly younger.
That in itself has proved to be a major obstacle in being able to make an arrest in her death.
"The crucial thing in that case is identifying the victim," sheriff's Maj. W.J. Martin said.
"There are marked similarities (between the missing woman, known to deputies as Jane Doe, and Jeanifer Weldon)," he said, "but not the same level of factors."
Jane Doe had numerous tattoos and wore several pieces of jewelry, including heart-shaped earrings, bracelets and necklaces.
Information about Jane Doe can be found at www.polk sheriff.org under Cold Case Files.