The matter is likely under further investigation to see what more can be charged. You need a lawyer now. The civil demand by Kohl's has nothing to do with the criminal charge. If you've been Mirandized and interviewed this is not likely to go away at this point. Nobody here can put your mind at ease. That's something only your lawyer can do. S/he can tell you exactly what is likely to happen and the likely consequences of your action in your specific jurisdiction.