Its not Domestic Violence in the eyes of the law because they weren't living together or had children together. Don't get me wrong though. Its Domestic Violence. That is a recommended 6 game suspension. The NFL can definitely give him that as their own entity. I think he should be gone. Not even taking the act into account its a massive distraction to the team. Sign Trey Benson or whoever and move on. His cap hit isn't that bad also.
To be fair, he is innocent until proven guilty obviously but its on video, so there's that.
Also, with cutdown day occurring on Sunday evening, I assume they will get Infront of this and do something. Going into week 1 on the road with Lyold, Brooks and Strong would be tough, but an awesome opportunity for Marshawn if he can stay healthy.