The death penalty and the role race plays in who dies

I remember listening to Public Enemy's song "By the time I get to Arizona" and had the worst feelings one could possibly have about a state.  It is a song criticizing the state of Arizona for initially not wanting to recognize Dr. Martin Luther King's birthday as a public holiday.  I thought that must be the last state any Blacks would want to live in.  Well recently I was doing a research and was shocked to see that Arizona may not be that bad in some regards.  At least wher...