First off it's called Capital Punishment. The operative word is punishment. It has nothing to do with revenge, deterrent or retribution. You are found guilty of a crime so heinous, you die. Simple as that.
Second, there is no perfect system. Perfection cannot be achieved. We do the best we can. There is an appeal process. That's it.
If you want a perfect system for Capital punishment, then I want a perfect system for welfare. Until we can insure that 100% of the money being distributed is not being scammed, no one can receive any benefit. I want the same thing for Social Security disability, food stamps, all forms of public aid, all government grants and student loans. Anything and everything must be perfected before implemented. Then and only then will I accept the demand for a perfect Capital punishment system.
On a side note this guy was a worthless piece of shit who did not "suffer" at all far as I'm concerned. This drugging people to death is bullshit anyway. Bullet to the head, Done, take the body to the dump and let the rats feast on his rotting corpse.
So then it's ok by you if innocent people are put to death so that you can exact your savage punishment to the guilty ones. Just the price of punishing someone huh? Who really cares if a few innocent people are killed in the pursuit of justice.
Do you righties ever think things through?