Do I have a lawsuite for wrongful termination? i feel that i was wrongfully terminated and discriminated agenst.

I was recently terminated from my job. There was an incident that i had supposedly hit someone. The incedent happened on July 30, 2011. The supervisor watched the video on August 9, 2011. I was terminated on August 11, 2011. I never got a written warning for this. When they asked the other emplyee involved he said that nothing happened. I was given a verbal warning to stop goofing off. That was it. After the incident we (the employees) all went back to working. I worked the 12 days after the incident until the supervisor came in and terminated me. At this place of busness there is goofing around all the time. There was other people who did the same thing to me that i supposedly did to the other emplyee and no conciquence has been done. Why am I being singled out and terminated for what other employees are doing in the work place?