Macadoo 1

I was a former District Manager for a convenience store chain and was terminated for various so called peformance reasons. I feel that these reasons were false. The District Manager that replaced me has been performing worse than the reasons that they gave me in my termination statement. I know this because I still talk with my former managers. I was widely respected in the company by most and my performance was not lacking in any area. Thinking that I was to review current P & L statements I was blindsided with the termination, no notice, no documentation, no counseling, no nothing. I had no idea that I was going to be terminated. There are many District Managers that are performing worse than I ever had performed. Although this is an "At will" state I feel that there has been an injustice made in my termination because others are performing just as or worse than the accusations that were made at my termination. Why haven't they been terminated for performance also? Can anyone bring some light on this subject on if I have some kind of legal recourse to the company?