Basically it is like the scene in The Fugitive (1993) where the prosecutor (Tommy Lee Jones) said that he did not care about the title's character's innocence, since he concluded long ago the man's guilt without pondering the evidence.
The evidence here is in the defendent's ethnic background and his age. This has not been about justice, but about killing long and hard or pain long and slow, like when a persecutor in the Dark Ages used a thick board with a number of weights carefully added to the prone restrained victim until the guy hears what he wants or kills the victim. Hence the French phrase for "pain long and hard" to decribe the torture of "pressing". It was just as bad as the rack and worse than waterboarding.
Christian is being tortured long and hard for a crime that does not fit the punishment. He did not commit first degree murder. He did not plan to kill his brother. He did not kill him outright. The mother committed neglect of the little child and let him die. How many times will that be said by the defense in that trial this spring? Now wonder while you see the tortured look on the boy's face.