The prosecution is wrapping up its main case in the trial of a South Florida woman accused of killing 4-year-old foster child Rilya Wilson a decade ago.

The state could rest as early as Tuesday after some five weeks of testimony in the case against 66-year-old Geralyn Graham. Defense attorneys plan to begin their case with testimony from investigators who were unable to find Rilya's remains or any forensic evidence.

It's uncertain if Graham herself will testify. She insists she is innocent and has claimed Rilya was taken from her home in early 2001 by a state child welfare worker who never returned her. Investigators say there's no evidence to back that up.

Graham faces life in prison if convicted. Key testimony came from jailhouse snitches who say Graham confessed.