He was expressing the hurt he felt in the interview with Martha.. At the hearing he unleashed his justified anger at the people who tried to destroy him.
Imagine his elderly parents. They’re in their golden years after raising their only child as a more-than-decent man. At this point in their lives they have to experience THIS? It’s sinful.
It was his mention of his little girl that triggered his tears. Any good father loves their little girls more than anything. His “baby” has been hurt and that breaks his heart.