Roger Goodell: “Because I acknowledge my mistake, August 28th, I said we didn't get this right. We're going to make changes.”

We are in a position where people are watching and you're in a different world right now and you have to be responsible. You are going to be held accountable.

No. We certainly didn't, and I would tell you that what we saw on the first videotape was troubling to us in it of itself. But what we saw yesterday was extremely clear, it was extremely graphic and it was sickening.

We are deeply grateful to the law enforcement officers who responded to this threat quickly and decisively and to Officer Islam, who gave his life to protect others.

I got it wrong in the handling of the Ray Rice matter. And I'm sorry for that.