Walter: It's more complicated. Things were going on that I am not at liberty to stay.
Frank: So you're going to let me blame myself?
Walter: You're going to blame yourself You're going to carry this around with you. But there was nothing we could do.
Frank: I refuse to believe there is nothing we can do to prevent suicides.
Walter: We've prevented dozens of suicides.
Frank: We didn't prevent this one. One is one too many. It always will be.