I don't think I have. I'm just confirming that the appeals process makes decisions that people think are unnecessary and do not like.
while wasting a lot of unnecessary money
No one was claiming Ruby was innocent. In that case, it was a debate over murder with or without malice, whether Ruby was legally insane, and whether he had a fair trial.
In a more modern context, the debate often comes down to whether or not the murder was premeditated. A murder is committed, but that does not mean it is a capital offense. That's where the death penalty comes in to play.
If you think it shouldn't be that complex, that's fine. After all, Leon Czolgosz was electrocuted for the murder of William McKinley just two months after the act. And that includes a trial. But that's not the legal climate any moroe. Our legal system is set up to check itself and to make sure everyone gets their constitutionally-guaranteed right to a fair trial. If that means years and years of appeals, so be it.