Prosecution rests in murder trial of caretaker of missing Florida foster child Rilya Wilson

The prosecution has rested in the murder trial of a South Florida woman accused of killing 4-year-old foster child Rilya Wilson, whose body has never been found.

The final witness Tuesday against 66-year-old Geralyn Graham was a jail inmate who testified that while Graham was jailed in 2003, she admitted killing a child. Two other inmates also said Graham confessed to the crime while in jail.

Graham's defense will begin Wednesday with investigators who never recovered Rilya's remains or found any forensic evidence. It's unclear if Graham herself will take the stand.

Graham has insisted that Rilya was taken for mental tests by a state child welfare worker and never returned. Detectives have found no evidence to back up that story.

Graham faces life in prison if convicted.