He should have said something like:
I got angry. Then I acted violently. That was childish and stupid, and 100% my own fault. I was out of control. I am terribly embarrassed by my behavior, and apparently I need to get help. I am going to get help, to make sure this never happens again. I apologize first and foremost to Chris Rock, who I struck, and who in no way deserved to be hit, and who responded to my violence with grace and kindness that I did not deserve. I apologize to my wife, who I embarrassed. She is more than strong enough to take a joke, unlike me. I apologize to the Academy and other honorees, for I have forever marred this night, their night, drawing the attention they have earned. Finally, I apologize to the audience. As a public figure, I am a role model, even if I do not deserve to be. I need to do better, and I will do better. My apologies to everyone for my violent and inexcusable behavior.