The "victim" increased the crime intentionally to make more money. The cost of dealing with the increase was shouldered to taxpayers. They also were put at increased risk of physical harm. I think that means there's two victims: Walmart and taxpayers. That's why the one city declared Walmart a nuisance. They weren't allowed to externalize their problem onto others for free anymore. Once economics changed, suddenly Walmart decided it knew how to reduce crime. Which it did.