Just heartbreaking. Apart from the tears for the little girl Caylee whom he still so obviously loved, I can also hear in his voice how sad and confused he is about how he could have once thought he really knew Casey enough to want to marry her and have a family with her. I hope he doesn't have long-term trouble re: being able to trust others and to trust his own judge of character. That would also be terrible, especially for such a kind, compassionate fellow, whom any female would be lucky to have met. My heart goes out to him. 
