The trial of Marie Pizem and Ronnie Ron, accused of killing Pizem's daughter several months ago, opened on Sunday. Ron is accused of murdering the girl who was Pizem's daughter from a failed marriage to Ron's son. Pizem is also facing murder charges. The body of Rose Pizem was found in a suitcase in the Yarkon River in September. The trial began with testimonies by the child's babysitter, who recounted the couple's odd behavior in the days following the girl's disappearance.