What does it take to get a man off Death Row?
Tookie Williams had probably the best case for a true in-jail turnaround of any inmate, ever. His crimes were unspeakably brutal and unconscionable, true, but few criminals have campaigned as steadily and as importantly as Williams to erase their past deeds and prevent others from repeating them.
This is all in addition to the fact that capital punishement is both ineffectual and immoral regardless of the morality of killing itself.
Edit: More here.