I have a theory that Carley or Doug (depending on who you saved) knew about Ben's secret deal with the Save Lots Bandits. Both characters stick up for Ben after the escape from the Motor Inn, even stating that they didn't care who was responsible. Carley also gets a very strange look on her face whenever you confront her about the flashlight, as she was thinking "Oh shit, now Lee is onto him".
Seeing as how Carley was already a mediator for the group in a way (knowing about Lee's past, keeping it a secret to help him overcome his past), I think it would be reasonable to suggest that she finds out about Ben but encourages him to keep it to himself or to figure out a way to come clean himself. Same deal with Doug, he seems like a brotherly figure to Ben and I think he would rather try and help guide Ben than sell him out to Lilly ("The She-Devil").
What do you guys think? Has anyone else ever considered this or am I grasping at straws?