I feel I was laid off because I contacted H.R about my manager.

A fellow employee we're suspended from work for a minor incident that happened at work. The other employees suspension was lifted after a few days. Me on the other hand was off for 10 days. 3 days after the incident I was not scheduled to work but I had to turn in some annual physical papers, when I arrived at the shop my manager had begun to harass me and the incident that happened 3 days prior. I left the shop and begun my drive home. An hour into my drive home I got a call from my manager saying I was being suspended from March 1st through March 11th. I called my employers H.R and filed a complaint and informed them I felt like I was being set up to be terminated, and was in fear for my job (they investigated the matter) then I was laid off 2 weeks later because there was "no work" a week before my layoff a new employee was hired, my manager sent out a group msg saying "i just hired a new guy tick tock tick tock" H.R has not returned my phone calls since my layoff..