My question involves labor and employment law for the state of: TN

So, I recently let go from my job, from being tardy twice, written up and let go. It was only supposed to be a suspension, but they never did call me back to come back, like they said they would. Filed for unemployment, it was approved, probably because the employer never responded to the claim.

I recently also filed a labor claim for unpaid overtime, which they are currently investigating, since the company doesn't keep accurate record of hours worked.

Even though I'm typically not the one to play the race card. I'm pissed at the way they did me, and someone else being late and nothing is even said to them.(For me, one verbal warning, second time, write up/suspended/fired.) There is no handbook with my company. Now nothing discriminatory is said to me the entire time I was employed, so no witnesses. But, being the only minority with the company, would it right to place the race card just almost to be malicious, or maybe I don't want to see what was there...