Answer:
Jerry and Jack's stories differ in several ways. Jerry claims that Erin's locker was open when he arrived, and that he noticed it was open because he meets Erin at her locker every day after class. He also says that he considered shutting the locker for her, but decided to tell a teacher instead because he thought someone might have broken into it. On the other hand, Jack claims that Erin's locker wasn't open when he got there. He says he was waiting by her locker for five minutes because he was supposed to copy her notes from a previous class, but she never showed up. He left to go to his own class without ever seeing Erin's locker open.