I don't have any problem passing laws that are designed to make sure that only the guilty are executed. Tookie was clearly guilty, however, just as is this other guy whose execution is coming up.
If you really analyze what the proponent said in the article, it isn't about guilt. It's about rich folks having a better chance than poor folks of getting away with their crime, because they didn't have "bad lawyers". His solution isn't to make it harder for the rich, but to make it easier for the poor to get loophole reprieves.