It was about three years ago that Baltimore prosecuted a white business owner for sleeping in his business and shooting a couple of black felons (surprisingly called "youths" by the scumpaper) who were repeatedly burgularizing his establishment. I can't remember the outcome, but I think he was found not guilty.
The murderer or other criminal is reacting to societal oppression and it is the only way he can compensate for the repression. The defender owes something to him because rationality gives the defender an unequal advantage in society that takes away from the criminal, that keeps him "down." The criminal's irrationality in renders his actions excusable and understandable. The defender is acting in a highly rational manner. He knows what he is doing. Therefore he is culpable because he is deliberately damaging or killing one of the downtrodden. That makes him evil and subject to punishment. The criminal just needs to be given proper nutrition and access to healthcare and wholesome recreation and a nice house.
It sounds farfetched as hell but I have had this argument with liberals more than once since the 60s including with my old bud who is a long-time biologist at UF with a very high IQ though his intelligence seems to be thoroughly blinkered.