Sarat on "botched" executions

Death-penalty expert Austin Sarat has this FindLaw column, "When Executions Go Wrong: A Horribly Botched Florida Killing Adds Strong Impetus to a National Reconsideration of Capital Punishment," on the recent Diaz execution.  I'm not sure I agree that focusing on the method-of-execution debate the wrongful-conviction problem -- although very, very important -- is a good abolition strategy.  There will always be plenty of capital murderers whose factual guilt is unquestioned and unquestionable, and -- it seems to me -- it is also always possible for death-penalty supporters, legislators, and prison administrators to devise new execution protocols and methods.  Maybe it's just because I have an unhealthy attraction to abstract moral arguments, but it seems to me that the question, at the end of the day, remains, "do some murderers deserve the death penalty and, if so, may our governments administer that penalty?"