You may have an IQ of 88. You may have chronic brain damage. You may have a history of seizures. Your brain -- at least according to the CTs -- may have weirdly shrunk. Perhaps all of these due to (and certainly not helped by) being hit by a car when you were riding your bike in seventh grade, plus two motorcycle accidents, plus a car accident. All of which knocked you unconscious. Yes, all of these may well be true.
But you killed a four-year old kid. For $250. Which you negotiated up from $150.
That's going to get you sentenced to death by pretty much everyone. In legal parlance: No prejudice.
So holds the Ninth Circuit.