@BellaVita, I wrote a lot answering the phrase about people of faith being ridiculed, and erased it all, because such discussions never arrive at any common denominator.
However, we live in the country where there is the separation of secular and religious life. And honestly, we are lucky that we do. The Judge represents the rule of the law. And our law should be impartial.
Religious convictions are sometimes at variance with the existing legal system. Our personal convictions might differ. We all know it. But we, as humans of different genders, ethnicities, beliefs, convictions, just very different people, are still governed by the same law. We should be equal under it.
What could a good Christian judge do, in my view? Come home and pray for the souls of Botham Jean and Amber Guyger. Quietly, as it should be between her and the Lord.
Instead, there was a mega-show in courtroom. This is how I view it, sorry. It is not faith, it is something showy. She had the chance to demonstrate her religiosity, and she did it.
As to Amber Guyger, I don't know what one should do in this situation, to be forgiven.
Gandhi gave a good advice in this situation. A Hindu man came to him during Hindu-Pakistani incident and said he killed a Muslim child and he could not live with his conscience. Gandhi advised to find a boy who lost his parents during the incident, and raise him, but raise as a Muslim.
This is forgiveness by the laws of karma.