When Callie finds the towel bar in the cleaning lady's cart, it has Beth's hair on it. Callie questions Beth and at first Beth says it must be from when she hung a towel on the rack. Callie responds that it couldn't be that and Beth eventually confesses to Armando's murder. She hit him in the head with it three times. Armando's hair should be on the towel rack, not Beth's. They give no explanation as to why Beth's hair was actually on the towel rack.