My wife needs your help in disputing wrongful treatment from her employer: Dollar General Stores?

My wife began working for DG Stores in Jan of '07. She quickly worked her way up into management. Once she became interim GM of a store in TN. She dove in completely doing her best to make a name for herself. a few months later, the company brought in their permanent GM. This person was heard by more than one person that she was going to get rid of everyone working at the store and bring in all of her friends from Goody's to work there. The District Manager told my wife to give the new GM her security code for the store, which she did. 1 week later, when my wife was working at another store, $400 dollars came up missing from a deposit at the store where the new GM was. My wife was suspended pending investigation because her Pin number was used the morning the money came up missing. My wife was at another store when this number was used. Two other people had the same number. Dollar General is not actively doing anything about this. I need your help.