 The locker belongs to Susan, who tries unsuccessfully to get Wyman to back her claim of being with him at the time the gun was stolen.Based on Jarrell's testimony at her trial, the prosecution theorizes that she had persuaded Eber to steal information which she then passed on to Brigham.After Eber was fired, he learned of Brigham's profit on the deal and realized what Susan had done; she killed him to keep him quiet, then did the same to Brigham.