Can anyone refer a good discrimination attorney in Nashville TN?

I visited a Walgreens on Easter...within ten minutes the assistant manager managed to insult my ethnicity..my religion..and my financial status as well as accusing me of stealing coupons from Sunday papers and trying to get my money back. Ive never been so embarrassed..insulted and treated like dirt. My day with my family was wonderful and only to end it horribly with this person bringing me to tears. Walgreens advised me they were sorry and would have a discussion with this person. That to me is a slap in the face after how this person treated me. I do not think this person should remain in his title only to do and treat other people aa horrible as he treated me.