David says, at this point, he didn't fully understand what had happened. "It took a while before I realized the horror of what I'd done. ... I just had this numbness, and it's the same numbness that allowed me to do something like this."
He says the only emotion he could muster was that the situation was "wrong." "That's what the depression was. That's how black it was. ... The reasoning is distorted. Everything is so distorted that—that part of your brain isn't working. I knew logically that those were my daughters, but I didn't think about the pain that I was causing them and the loss, and the denial of their right to grow up and be loving people."