My work PC blocks a lot of sites, including ESPN. But I'm bored today, you see, and I really want to read an article on ESPN. First one to post it here for me gets 10 points.It is the Pickups of the Week article by Matthew Berry. You go to espn , then hover over Fantasy and click Fantasy Football. Scroll down and you'll find a link to the article. If you're familiar with the article, he usually has an intro that he writes before he goes into the pickups section. If the whole article won't fit in the Y!A paste box, you can skip the intro.
Unless you have a union or contract you can be fired for any or no reason at any time. At my job both would get fired but that is a company policy not law. You should wait and see what happens. It seems to me if the company has already had complaints about him and nothing on you then they would get rid of him. Good luck!
Unless he was fired for some legally discriminatory reason (in which case he should go to the EEOC) he has no case. He's an employee at will and can be fired without cause, or for any reason not legally protected.