I don't want to trust the tabloid version of the story, because it feeds very much into what I want to believe, but it's kind of sounding like his mother, from whom he has been somewhat estranged since she made him choose between her and his father (he chose his father and they moved to LA? Some article was saying this today?), started shit-talking his wife, and he reacted as a man under a lot of stress will react when someone shit-talks his wife: shit-talking back. I think the current version of the story is that he "lightly pushed" or "brushed" his mother, and then later she and the sister went to a police station and complained. Again, it's tempting to view him as a hero here when he really might not be, but... the family is not coming off very well in the current version of the story.