My husband worked for 4 years, a coworker attacked...

My husband worked for 4 years, a coworker attacked him and he defended himself, they were taken to the office, on July 17, his husband changed his job the next day, when he arrived he was told to leave To the office, was and never attended him came home and they call him to tell him that he is fired, that unfair, the saddest thing is that the person who attacked first if he is back at work and he only had a month of being Working, and my husband was kicked in the ass. 4 years working for this company.