Final answer:
Rusty's statement suggests that the situation has worsened and he is prompting a sense of suspense about Reverend Moore's involvement in uncovering something significant.
Step-by-step explanation:
When Rusty says, "Wait! It gets worse. Guess how Reverend Moore found out," he indicates that the situation worsened and there is a sense of urgency to convey how dire the circumstances have become. Moreover, Rusty's statement prompts a sense of suspense and engages the listener to guess the means by which Reverend Moore's involvement led to the discovery of something significant. In this context, it appears that Rusty is relaying a critical development that potentially compounds an already difficult situation.