assault at work

Hello,
I am one of two managers who was struck in the back by our District Manager while he was ranting about low sales from the previous day at a meeting that was taking place in our store. He hit the other manager first, I backed away from him, and he moved forward and hit me as well. I said "Don't touch me" and he continued to yell at us in front of 4 subordinates. We filed a police report the following day for assault and reported the incident to Human Resources. Since most of the information on your site re: harrassment revolves around sexual harrassment, I was not sure if the same laws applied. What is our legal recourse in this situation? What type of attorney will we need to contact if we want to move forward and press charges against him?

Thank you.

Sincerely,
J.R.