Florida woman accused of killing 3-year-old son who vanished in Nevada 30 years ago
Amy Elizabeth Fleming, left, is seen in a booking photo released by the Palm Beach County Sheriff's Office; Francillon Pierre, right, is seen in a photo released by the National Center for Missing & Exploited Children.

via KTLA:

PALM BEACH COUNTY, Fla. (KTLA/AP) -- A 60-year-old woman who moved to Florida from the Las Vegas area a year after her 3-year-old mysteriously vanished more than 30 years ago has been arrested on a warrant charging her with killing the boy, authorities said Monday.

Amy Elizabeth Fleming of Dania, Florida, was being transferred to Nevada from jail in Palm Beach County following her Jan. 29 arrest in Boca Raton on a murder charge in Francillon Pierre’s death in August 1986.

The child has not been found, but North Las Vegas police Officer Eric Leavitt said investigators recently obtained new witness accounts saying Fleming killed him. Leavitt declined to specify how authorities believe the child died.

Fleming, who was 28 at the time, and her then-fiance, Lee Luster, told police that the boy, nicknamed "Yo-Yo," wandered away from them at a Saturday afternoon swap meet.

“The parents have always been persons of interest in the case,” Leavitt said. “At this point, evidence points to (Fleming), but the investigation is ongoing.”

Luster has not been charged with a crime.

MORE: Florida Woman Accused of Killing 3-Year-Old Son Who Mysteriously Vanished in Nevada Over 30 Years Ago - KTLA