do i have a case?

August 11, 2018 -  After purchasing a snack from the Buffeteria due to not being allowed enough time for a 30 minute break, I witnessed two employees from our organization sitting in the Buffeteria. Shortly after I returned, the covering manager, Covering manager approached the slide, and asked why our area was blown out. I then stated, that we had two employees in the Buffeteria, and that they were not on break.
Covering manager A confronted the employees shortly after they returned about not being on the slide working.
At the time, I was stacking for a checker when Cowoker came onto the slide with food, and stated, "Who's the snitch?"
I replied that if he was referring to who alerted management of him being in the Buffeteria, I told him that I was. Coworker then stated, "I'm going to fucking knock you out." and walked away.
My reply to that was, "You’re not scheduled to work 6 hours today." Coworker then turned around to come back towards me. At that point, covering manager A then came from behind the slide and intervened the situation.
covering manager A asked what was happening, and I explained the situation. the checker told covering manager A that she agreed with what happened and that what I said was accurate.
I continued to scan freight in order to get the slide under control. Shortly after that, checker said she would not get involved in this and walked away. checker also stated that she would not write a statement or be a "snitch".
Around 30 minutes later, another manager, covering manager B came to the slide and said he needed statements from myself and checker.
After the statements were written checker was frustrated about having to write a statement, and proceeded to call me a "Snitch" and a "Popsicle Head".
Around 1730-1800, covering manager B called me into the manager's office to complete a Work Place Violence (WPV) report.
The remainder of the day my co-workers would not speak to me and acted differently towards me.
08-12-2018, I wrote my statement and submitted it to the Security Officer for the WPV case. I even requested that my coworker not be punished for his actions, but me and covering manager B felt the need that it should be brought to the attention of management and security. The remainder of the day, most of my coworkers were still ignoring me.
 
 
August 13, 2018 - August 22, 2018 - I started my scheduled vacation
August 14, 2018 – My manager, called me and asked why I involved him, stating that another manger told him, "I had approached him numerous times about ‘beefing’ with my coworker.”
I replied, "I never stated that.” But I did say that we had too many employees slacking off the job numerous times."
My manager then stated, "All of the area is stating that you sabotaged, coworker."
I asked how I sabotaged coworker, when I was simply notifying management of the employees in the Buffeteria.” I went over the whole situation with him again and how covering manager intervened, and that I did not want my coworker to be punished but I wanted management to take action to prevent the employees from leaving the slide and not working.
my manager then told me to enjoy my vacation and hung up.
August 15, 2018 - my manager called me again to ask what my Full Time hire date was.
August 21, 2018 - my manager texted me to come into work for a meeting in Security. I advised him that I was still on vacation, and would come in on 08-22-2018. After I dropped my son at daycare, I called him back and stated I would be able to come in.
my manager said, "No, I have other stuff to do now." and hung up.
August 22, 2018 - my manager texted me at 0731, and advised me to come in at 1030.
I showed up to work at 1015. Antonio Thomas did not arrive until 1115. my manager and second manager then proceeded to issue me a Warning Letter, and then Termination.
I then asked if I could have an example of the “inappropriate language” that was the cause of my termination, and neither one of the managers were able to provide any details about what language was used.
I signed the letter, turned in my badge, and was then escorted to my car.